Learn how to obtain the crucial Thief's Key in Dragon Quest I & II HD-2D Remake. Find out where to go after Moonbrooke and how to unlock treasure chests.
Alright, so you're looking for the Thief's Key in Dragon Quest I & II HD-2D Remake? Don't worry, it's not too far into the game, and you'll snag it after dealing with the whole Moonbrooke situation. Once you hear about what's going on there, you'll be sent to check it out. When you arrive, you'll see the reports are sadly true, and the kingdom is in a mess. Head to the inner chamber – you'll see a cutscene, and then a voice will point you towards the Swamp Shrine.
The Swamp Shrine is pretty easy to find; it's just east of Moonbrooke and has a distinctive poison pool around it. Head there and grab Ra’s Mirror from the center. Now, you might think you're stuck, but remember that town you passed on the way to the shrine? That's Moonahan. Go back there, and you'll find a dog chilling by some stairs that lead to a locked door. Talk to the dog, and you'll get a prompt to use Ra's Mirror. Abracadabra! The dog turns into Princess Peronel of Moonbrooke!
After a little scene, Peronel will officially join your party. You'll have three main kingdoms to visit now: Midenhall, Carrock, and Moonbrooke. To save yourself a bit of backtracking, head back to Moonbrooke first. Go to the upper right corner of the castle, and you'll trigger another scene. Stick around until the very end of this cutscene, and bam! You'll finally get the Thief's Key!
Now that you've got the Thief's Key, you can use Peronel's Zoom spell to revisit all those spots with locked doors and chests you've probably been eyeing. This guide won't cover any new locked things you find *after* getting the key, but it will show you where to use it for all the treasures you've missed so far. Here's a breakdown of what you can unlock:
| Location | Item | Notes |
| Moonbrooke Castle B1 | Snooze Stick | Use the stairs in the middle to get here (Chest) |
| Midenhall Castle 1F | Strength Ring | Room just north of the teleporter (Chest) |
| Midenhall Castle B1 | Crackle Scroll | Locked door on eastern side of 1F, then stairs leading to jail area; Barrel at end of path |
| Shipwright’s Shrine | Mini Medal | Outside, on the left side of the main building (Chest) |
| Leftwyne | Arriviste’s Vest | Inside the inn; in the first room (Chest) |
| Cave of the Lake B2 | Hypnowhip and Sage’s Elixir | Two chests right at the end, where you fought the boss |
| Moonahan | Defizzle Scroll | Locked door in middle of town; Use stairs to reach the isolated area |
| Secret Area (World Map) | Stone Hardhat | West of Moonbrooke |
Once you've grabbed all these goodies, you're all set to continue with the main story. Happy looting!
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