It is in Swamp, about 45 steps east of the spot the map marks with that name.

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

• Key 5000: a locked door bars the way, and that is the number of the key that opens it.
• Something for giant spider, beholder and slime — they live down there.

• 1 — the chest

The strongest 14 of 20 kinds whose nests reach this place.

One chest, one reward.