It is in DragonIsle, about 30 steps north-east of the spot the map marks with that name.

• 1 — DragonIsle, as the map itself names it
• 2 — the ground above the treasure

• Level 25 at least — there is a level door on the way in.
• Key 3007: a locked door bars the way, and that is the number of the key that opens it.
• Key 3008: a locked door bars the way, and that is the number of the key that opens it.
• Something for dragon lord, demon skeleton and slime — they live down there.

• 1-2 — the chests

There are 2 chests here under 2 quest numbers, so you can take them all.