Quick answer: Cursed Monarch is the secret Divine fusion pet added in Steal An Egg's Halloween Part 2 (Update 10, live October 24, 2026). To get it you need a partner. First unlock the Abandoned Manor by fishing the Manor Key out of the secret fishing area behind the Phantom Express. Then go upstairs to the four-pedestal fuse altar, where each player places one Ghost Fish (Eternal) and one Voidseer Pumpkin (Divine). That's 2 + 2 pets in total, and both players get a Cursed Monarch Egg, which you hatch on your base. The hard part is the Voidseer Pumpkin, which spawns at a 0.056 weight in the Abandoned Manor egg pool.
Last checked: October 25, 2026, 09:30 UTC. Applies to Steal An Egg Halloween Part 2 (Update 10).
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Key Takeaways
- The recipe is 2× Ghost Fish + 2× Voidseer Pumpkin, split across two players. The altar has four pads (two fish pads, two pumpkin pads), and each player fills one of each.
- Both players get a Cursed Monarch Egg. Hatch it on your own base like any other egg.
- You need the Manor Key first. Echo's quest gets you the Phantom Express Ticket, the train takes you to Forgotten Town, and a green whirlpool leads to Gus and the key.
- The Pumpkin King boss opens twice an hour, at :15 and :45, and feeds a 65-tier Boss Mastery pass with the six other new Halloween pets.
- Treat every income figure as provisional. Sources currently disagree on Halloween pet money-per-second by more than 50×.
- Steal An Egg still has no codes. Ignore any site promising a working Cursed Monarch code.
What is Cursed Monarch in Steal An Egg?
Cursed Monarch is a Divine-rarity pet that you can only get from the new co-op fuse altar inside the Abandoned Manor. It's the Halloween counterpart to the Angels & Demons fusion that gave us Aetheron: two players bring matching high-tier pets to an altar, and both walk away with a fusion egg.
Steal An Egg is a big audience for one pet. A live Roblox Games API pull at 09:24 UTC on October 25, 2026 had the game at 1,489,864 concurrent players, second on the platform behind Murder Mystery 2, with 9.4 billion total visits. The Part 2 update went live at 15:00 UTC on October 24, 2026, according to the game's official Roblox event listing. That listing teased the manor without naming the pet:
"A mysterious portal has appeared beyond the gates of the Abandoned Manor... but for now, it remains sealed." (Steal An Egg's official "Halloween PART 2" event listing on Roblox)
Part 2 opened that gate. Behind it are the fuse altar, the Pumpkin King boss portal and the mastery pass. If you missed Part 1's 35 pets, start with our Steal An Egg Halloween pets list.
What do you need to fuse Cursed Monarch?
The altar shows the recipe itself. Each of its four pads is labelled in-game, two reading GHOST FISH and two reading VOIDSEER PUMPKIN, with a "Place Voidseer Pumpkin" prompt on the pumpkin pads.
| Requirement | Rarity | How to get it | Per player |
|---|---|---|---|
| Voidseer Pumpkin | Divine | Steal it from the Abandoned Manor egg pool (0.056 weight) | 1 |
| Ghost Fish | Eternal | Fishing in the Halloween Dimension | 1 |
| A partner | n/a | Both players must be at the altar | 1 |
| Manor Key | Secret item | Fished up in the secret fishing area | 1 (unlocks the manor) |
TechWiser's walkthrough says it plainly: "You and your friend must place one Voidseer Pumpkin and one Ghost Fish Pet in the Fuse Machine." Hold to Reset lists the same thing as a group total of "2x Ghost Fish" and "2x Voidseer Pumpkin". Both describe the same setup.
The Voidseer Pumpkin is the real bottleneck. The community Fandom wiki's Drop_Rates table lists the Abandoned Manor (Zone 3) pool as Mimic Chest 43.1, Crowshade 37.51, Hexed Pumpkin 18.32, Werewolf 0.74, Abomination Kong 0.31 and Voidseer Pumpkin 0.056. Those weights add up to roughly 100, so a Voidseer turns up on about 1 in every 1,800 egg spawns in that biome. Expect a long session of watching spawns and stealing, and line up a partner who has already found their own, so the fusion can run the moment you get yours.
The Ghost Fish is easier. The wiki lists it as an Eternal pet whose source is fishing, and Hold to Reset says you catch it in the Haunted Swamp. You already own the rod you need if you finished Echo's Part 1 quest (see the next section).
Do the ingredient pets get used up? None of the guides published so far confirms it either way. Plan as if both of your pets are consumed. The earlier Angels & Demons fusion could consume pets, so don't put your only mutated Voidseer on the pad unless you're happy to lose it.
How do you unlock the Abandoned Manor in Steal An Egg?
The manor gate was chained shut for all of Part 1. Opening it in Part 2 is a quest chain that builds on Part 1, so you have to do it in order.
| Step | What to do | Where |
|---|---|---|
| 1 | Finish Echo the ghost dog's quest (find his 4 lost items) | Halloween Dimension |
| 2 | Clear the Ghost Fisherman's fishing mini-game to earn the Phantom Express Ticket | Halloween Dimension pond |
| 3 | Equip the ticket and board the Phantom Express (every 30 minutes, on the hour and half hour) | Train station |
| 4 | In Forgotten Town, walk past the big central tree to the lake and enter the green whirlpool | Forgotten Town |
| 5 | Talk to Gus, who dropped the key, then cast until you catch the Manor Key | Secret Fishing Area |
| 6 | Take the green sewer pipe to the manor and press E on the gate | Abandoned Manor |
A few things that save time:
- Keep fishing even after junk catches. The key can take several casts. Hold to Reset and 9to5gaming both note that the same water also drops Candy Corn, eggs and sometimes the Spectral mutation, so the time isn't wasted.
- Check the train clock before you go. If you just missed a departure you'll wait up to 30 minutes, so farm Candy Corn while you wait.
- You only unlock the gate once. 9to5gaming reports that the door stays open for the rest of the Halloween event, so you don't need a new key for every altar run or boss fight.
New to the dimension? Our Halloween Dimension guide covers the portal at spawn, the Corrupted Realm hub and Echo's quest.
Where is the Cursed Monarch fuse altar?
Inside the manor, go upstairs to the first floor. The fuse room is a round library with purple banners and four glowing pedestals in a row at the top of a red carpet. You can see it in the header image of this guide. The two pads on the left take Ghost Fish and the two on the right take Voidseer Pumpkins.
How to run the fusion cleanly:
- Meet your partner inside the manor. Make sure they've finished the Manor Key quest too, so they can reach the altar.
- Each player places one Ghost Fish and one Voidseer Pumpkin. Stand at a pad and press E to place the matching pet.
- Wait for all four pads to fill. The fusion won't run with only one player's pets.
- Collect your Cursed Monarch Egg, go back to your base and place it to hatch.
Trust is the risk here, not mechanics. A random partner who leaves halfway through mostly costs you time, though nobody has confirmed what happens to pets already placed on the pads, so don't place yours until both of you are standing at the altar. A partner who promises a Voidseer and doesn't have one wastes hours. Before you meet, ask them to show the pet in their Index or on their base.
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When does the Pumpkin King boss spawn?
The second big Part 2 feature is a two-phase boss fight: the Pumpkin Brute first, then the Pumpkin King (Sportskeeda and Grind N Strat both describe it this way). The portal sits outside the manor and shows an OPEN NOW banner with a countdown while you can enter. Hold to Reset reports that the fight opens twice an hour, at :15 and :45.
Every kill gives you a Mastery Point on the Boss Mastery pass, which has 65 unlocks. That pass is where the update's six new Halloween pets come from:
| Kills | Main unlock | Rarity (wiki) |
|---|---|---|
| 3 | Bubblelord | Epic |
| 10 | Coffin Crawler | Legendary |
| 17 | Bell Scream | Mythic |
| 30 | Phantom Banshee | Cosmic |
| 45 | Vespera | Secret |
| 52 | Pumpkin Scythe (weapon) | n/a |
| 65 | Pumpkin Brute | Eternal |
The kill thresholds come from Hold to Reset's in-game checks. The rarities come from the wiki's pet data, which lists all six pets in a neat Epic-to-Eternal ladder.
How long will it take? With two windows an hour, maxing the pass takes 65 boss windows, or about 33 hours of the event clock if you win every fight. Most players won't, so if you want the Eternal Pumpkin Brute, start now rather than in the event's last week.
How much does Cursed Monarch make per second?
Not confirmed, and be careful with any number you see. The community-edited wiki's pet data lists Cursed Monarch at $12.5B/s and Voidseer Pumpkin at $14B/s. But Voidseer's own wiki page says $782.5B/s, and All Things How shows a Voidseer at $203B/s, though that one is a specimen with four mutations stacked. Mutations and size clearly multiply these numbers, and nobody has published a settled base figure yet.
What this means for you:
- Don't fuse purely for income until it's confirmed. If the wiki's base figures turn out right, a Cursed Monarch would earn less than the Voidseer you give up. If they're wrong, it could be the other way round.
- Fuse for collection value and the Index. Cursed Monarch is a secret Divine you can only get from a co-op altar. That kind of scarcity has held value for the earlier fusion pets in our pet value list.
- Check your own Index after hatching. Your in-game money-per-second is the only number that matters for your base.
For reference, the previous fusion pet, Aetheron, earns $6.9B/s. Our Steal An Egg Index guide explains how the Index tracks the pets you've collected.
Want a top Steal An Egg pet without the Voidseer grind? A 0.056-weight spawn can eat a whole weekend before you even find a fusion partner.
- Steal an Egg pets: the game's top pets, fast delivery
Is Cursed Monarch worth getting?
Yes, if you already own a Voidseer Pumpkin and can find a partner who owns one too. Remember that each player needs their own Voidseer and Ghost Fish. The rest of the chain (Echo's quest, the train, the key, a Ghost Fish) is a single evening of play. The Voidseer is the only part that can drag on for days.
A sensible order for most players:
- Unlock the manor today. Keep fishing until the key drops. It opens both the altar and the boss portal.
- Run Pumpkin King windows while you hunt for a Voidseer. Mastery points stack in the background, and the pass pays out five pets before the 65-kill Eternal.
- Catch your Ghost Fish early. It's the cheap half of the recipe, so have it ready when a Voidseer turns up.
- Fuse once a partner with a verified Voidseer is online. Don't fuse a mutated Voidseer until someone confirms whether mutations carry over to the egg.
When does it end? Steal An Egg hasn't announced an end date for the Halloween event. The official Part 2 listing ran from October 24 to October 25, and the Part 1 Robux egg timer read about 14 days when it launched on October 17. Assume the window closes around the end of October and don't leave the fusion until the last weekend.
FAQ
How do you get Cursed Monarch in Steal An Egg? Unlock the Abandoned Manor with the Manor Key, go upstairs to the four-pedestal altar, and fuse with a partner. Each of you places one Ghost Fish and one Voidseer Pumpkin, and both of you receive a Cursed Monarch Egg to hatch on your base.
Can you get Cursed Monarch solo? No. The altar needs four pets on four pads, and every guide and the in-game layout describe it as a two-player fusion. You need a partner in the same server who also has a Ghost Fish and a Voidseer Pumpkin.
Where do you find the Manor Key? Ride the Phantom Express to Forgotten Town, walk to the lake past the big tree, and step into the green whirlpool. In the Secret Fishing Area, talk to Gus and keep casting until the Manor Key bites. Then take the sewer pipe to the manor gate.
What rarity is Cursed Monarch? Divine. Its fusion ingredients are the Divine Voidseer Pumpkin and the Eternal Ghost Fish.
When does the Pumpkin King spawn? The boss portal opens twice an hour, at :15 and :45, according to Hold to Reset's testing. Each kill adds a point to the 65-tier Boss Mastery pass.
Are there Cursed Monarch codes? No. Steal An Egg has never had a code system, so any site promising a working "Cursed Monarch code" or a free-pet generator is a scam. The only way to get it is the fuse altar in the Abandoned Manor.
