IndexError

Level 1 of the Dungeon
(4, 7, D:1)
  a +0 whip
(7, 12, D:1)
  8 stones
(9, -23, D:1)
  a +0 whip
(10, -5, D:1)
  a +0 short sword
  a stone
(11, -7, D:1)
  5 stones
(12, -16, D:1)
  5 stones
(14, -9, D:1)
  5 stones
(18, -3, D:1)
  a +0 chain mail
(20, -14, D:1)
  a +0 spear
(48, -6, D:1)
  a +0 chain mail
(51, 4, D:1)
  8 stones
(56, 17, D:1)
  3 poisoned darts

Level 2 of the Dungeon
(0, 0, D:2)
  a frilled lizard corpse
(3, -15, D:2)
  a +0 leather armour
(10, -11, D:2)
  a +0 long sword
(14, -5, D:2)
  a +0 short sword
(20, 15, D:2)
  a +0 ring mail
(38, -7, D:2)
  a +0 ring mail
(40, -4, D:2)
  5 stones
(42, -13, D:2)
  a +0 robe
(45, 3, D:2)
  a +0 dagger
(49, -3, D:2)
  a +0 sling
(55, 9, D:2)
  a +0 dagger
(55, 10, D:2)
  a +0 quarterstaff
(57, -13, D:2)
  a +0 dagger
  a +0 chain mail
  a +0 scale mail
  a +0 whip
  a ball python corpse
  an orc corpse
(58, -12, D:2)
  a +0 club
  a +0 mace

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 ring mail
(4, -2, D:3)
  a ring of protection from cold
(4, -1, D:3)
  a scroll of teleportation
(5, -4, D:3)
  a +0 chain mail
(5, 0, D:3)
  a +0 sling
(5, 3, D:3)
  15 gold pieces