IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 sling
(2, -2, D:1)
  a jackal skeleton
(6, 25, D:1)
  a stone
(20, 14, D:1)
  a bat skeleton
(20, 15, D:1)
  a bat skeleton
(24, 14, D:1)
  5 stones
(40, 27, D:1)
  8 stones
(41, 19, D:1)
  a +0 club
(47, -20, D:1)
  a +0 club
(49, -31, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  an adder corpse
(7, 19, D:2)
  a +0 club
  a quokka corpse
  a goblin corpse
(7, 24, D:2)
  a +0 chain mail
(8, 15, D:2)
  2 stones
(17, -2, D:2)
  a +0 robe
(32, 24, D:2)
  a +0 spear
(33, 5, D:2)
  an adder corpse (skeletalised by now)
(37, 1, D:2)
  a +0 dagger
(37, 35, D:2)
  a +0 ring mail
(38, 31, D:2)
  a +0 robe
(39, 33, D:2)
  a +0 robe
(41, 14, D:2)
  a +0 club
  a +0 ring mail
  an orc skeleton
(41, 15, D:2)
  a +0 flail
  an orc skeleton
(42, 14, D:2)
  a +0 hand axe
  a +0 ring mail
(45, 14, D:2)
  a +0 dagger
  a goblin skeleton
(49, 31, D:2)
  a +0 hand axe
(50, 27, D:2)
  a +0 chain mail
(53, 2, D:2)
  a +0 mace
(57, 27, D:2)
  a beast talisman