It is in NewbieStart, about 16 steps south of the spot the map marks with that name.

And 1 down from the surface once you are there.

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

• Something for bear, poison spider and troll — they live down there.

The chest is 1 floor under the surface. Going down over it, this is what each floor uses:

1. Ground: down through a ladder.

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

• 1 — the chest
• 2 — Rookgaard Rat Bridge ON (1)
• 3 — Rookgaard Rat Bridge ON (2)

One chest, one reward.