IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(3, -5, D:1)
  a frilled lizard corpse (skeletalised by now)
(7, -26, D:1)
  5 atropa-tipped darts
(7, -5, D:1)
  a +0 leather armour
(12, 2, D:1)
  a rat skeleton
(14, -24, D:1)
  a +0 dagger
  a goblin skeleton
(17, -25, D:1)
  a +0 ring mail
(32, -33, D:1)
  a +0 sling
(34, 12, D:1)
  a beast talisman
(36, -35, D:1)
  a frilled lizard skeleton
(37, -33, D:1)
  a +0 short sword
  a kobold skeleton
(42, -32, D:1)
  a rat corpse (skeletalised by now)
(44, -14, D:1)
  a +0 dagger
(60, -1, D:1)
  a rat skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 ring mail
(6, 3, D:2)
  5 poisoned darts
(13, -6, D:2)
  a bat corpse (skeletalised by now)
(13, 20, D:2)
  a +0 rapier
(20, -13, D:2)
  a +0 robe
(25, 34, D:2)
  a frilled lizard corpse
(27, 19, D:2)
  a ball python corpse
(31, -8, D:2)
  a frilled lizard corpse (skeletalised by now)
(33, -4, D:2)
  a ball python corpse (skeletalised by now)
(33, 0, D:2)
  a stone
(38, 3, D:2)
  a +0 dagger
(50, 24, D:2)
  a stone
(55, 33, D:2)
  a bat skeleton