snake

Level 1 of the Dungeon
(5, -1, D:1)
  3 poisoned darts
(8, 28, D:1)
  a rat corpse (skeletalised by now)
(11, 28, D:1)
  a +0 helmet
(18, 18, D:1)
  a +0 short sword
(38, 42, D:1)
  a jackal skeleton
(48, 22, D:1)
  a hobgoblin skeleton

Level 2 of the Dungeon
(14, 13, D:2)
  a ball python corpse (skeletalised by now)
(21, -11, D:2)
  a +0 hand axe
(22, -11, D:2)
  a +0 robe
(27, -15, D:2)
  a +0 club
(31, 10, D:2)
  a ball python skeleton
(54, -12, D:2)
  a hobgoblin skeleton
(54, 2, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(0, 0, D:3)
  a potion of mutation
(7, 3, D:3)
  12 gold pieces
(11, -2, D:3)
  a parchment of Momentum Strike
(14, 6, D:3)
  a dart slug corpse