IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(2, -1, D:1)
  5 stones
  a +0 club
(12, 1, D:1)
  6 gold pieces
(12, 16, D:1)
  a +0 dagger
(34, 4, D:1)
  4 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(5, -21, D:2)
  a +0 club
(9, -19, D:2)
  a +0 helmet
  a +0 animal skin
  a +0 spear
(10, -19, D:2)
  a +0 club
  a +0 sling
  a +0 club
(11, -19, D:2)
  a +0 club
  a +0 dagger
  a +0 dagger
(12, -18, D:2)
  a +0 dagger
  a +0 sling
  a +0 club
  a +0 club
(12, -17, D:2)
  a +0 club
(13, -14, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(8, -9, D:3)
  a +0 dagger
(14, 15, D:3)
  a +0 flail
(15, 14, D:3)
  a +0 mace
(17, 14, D:3)
  a +0 shortbow
(23, -1, D:3)
  a +0 rapier
(26, 5, D:3)
  a +0 ring mail
(29, 8, D:3)
  a +0 trident
(36, -12, D:3)
  6 poisoned darts
(40, -20, D:3)
  a +0 dagger
(41, -6, D:3)
  5 poisoned darts
(46, 4, D:3)
  a +0 scimitar
(55, -29, D:3)
  a +0 dagger

Level 4 of the Dungeon
(0, 0, D:4)
  a ball python corpse
(14, 8, D:4)
  a +0 flail
  an orc corpse
(15, 7, D:4)
  a +0 dagger
  a +0 robe
  a +0 club
  a +0 ring mail
(16, -10, D:4)
  3 stones
(16, 7, D:4)
  a +0 dagger
  a +0 robe
(17, 3, D:4)
  a +0 dagger
  6 poisoned darts
  a kobold corpse
(22, 5, D:4)
  a +0 hand axe
  a +0 ring mail
  an orc corpse
(54, -10, D:4)
  a +0 dagger