• A rope. You drop in through a hole and a trapdoor, and a rope is how you climb back out.
• Something for demon, warlock and hero — they live down there.

The chest is 8 floors under the surface. Going down over it, this is what each floor uses:

1. Ground: down through a hole.
2. 1 down: down through a hole.
3. 2 down: down through a hole.
4. 3 down: down through a hole.
5. 4 down: down through a hole.
6. 5 down: down through a hole.
7. 6 down: down through a trapdoor.
8. 7 down: down through a ladder.

• 1 — the way in: a hole, ground
• → — the treasure lies this way

• 2 — a hole, 1 down
• → — the treasure lies this way

• 3 — a hole, 2 down
• → — the treasure lies this way

• 4 — a hole, 3 down
• → — the treasure lies this way

• 5 — a hole, 4 down
• → — the treasure lies this way

• 6 — a hole, 5 down
• → — the treasure lies this way

• 7 — a trapdoor, 6 down
• → — the treasure lies this way

• 8 — a ladder, 7 down
• → — the treasure lies this way

• 1 — the chest

The strongest 14 of 16 kinds whose nests reach this place.

One chest, one reward.