IndexError

Level 1 of the Dungeon
(4, -27, D:1)
  6 poisoned darts
(10, -10, D:1)
  a +0 dagger
(13, -27, D:1)
  a +0 long sword
(32, 9, D:1)
  a +0 dagger
(35, -28, D:1)
  a +0 club
(36, 2, D:1)
  a beast talisman
(38, -29, D:1)
  a +0 trident
(45, -15, D:1)
  a +0 dagger
(45, -7, D:1)
  a +0 dagger
(54, -18, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 chain mail
(1, 8, D:2)
  a +0 hammer
(8, 36, D:2)
  a stone
(10, 9, D:2)
  a +0 cloak
  a +0 robe
  a +3 quarterstaff of chaos
(12, 2, D:2)
  a +0 falchion
(13, 8, D:2)
  a +0 hammer
(19, 29, D:2)
  a +0 robe
(40, -2, D:2)
  5 stones
(63, 25, D:2)
  a +0 short sword
  a +0 scale mail

Level 3 of the Dungeon
(0, 0, D:3)
  a ball python skeleton
(2, -10, D:3)
  a +2 mace of holy wrath
(3, -8, D:3)
  an adder skeleton
(7, -39, D:3)
  a +0 spear
(8, -22, D:3)
  a +0 leather armour
(18, -37, D:3)
  a +0 hand axe
(21, -2, D:3)
  5 stones
(29, -3, D:3)
  a +0 robe
(31, 4, D:3)
  4 boomerangs
(36, -43, D:3)
  a stone
(44, -7, D:3)
  4 stones
(48, -36, D:3)
  a +0 sling
(54, -36, D:3)
  6 stones
(54, -35, D:3)
  a +1 vampiric scythe {!w}
  a +0 dagger
(55, -32, D:3)
  6 poisoned darts
(57, -36, D:3)
  a +0 club
(59, -1, D:3)
  a +0 scale mail

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 mace
  a +0 leather armour
  a +0 flail
  an orc corpse
  a gnoll corpse
(1, -1, D:4)
  a +0 flail
  a +0 whip
  a gnoll corpse
(1, 0, D:4)
  a +0 dagger
  a +0 robe
  a +0 club
  an orc corpse
  a gnoll corpse
(1, 1, D:4)
  a +0 dagger
  a +0 robe
(4, 3, D:4)
  a +0 trident
(5, 4, D:4)
  a +0 flail
  an orc corpse
(5, 5, D:4)
  a +0 club
  a +0 flail
  a +0 leather armour
  an orc corpse