IndexError

Level 1 of the Dungeon
(4, 4, D:1)
  a +0 dagger
(6, -30, D:1)
  a +0 dagger
(7, -31, D:1)
  a +0 club
(7, -30, D:1)
  a +0 plate armour
(29, 2, D:1)
  a +0 dagger
(33, -15, D:1)
  4 poisoned darts
(38, -17, D:1)
  a +0 scale mail
(44, -31, D:1)
  a +0 ring mail
(48, -7, D:1)
  a hobgoblin corpse (skeletalised by now)
(50, -14, D:1)
  an orb of mayhem
(52, 8, D:1)
  the Almanac of Arctic Enchantment
    Spells                            Type                      Level
     a - Sigil of Binding              Hexes                         3
     b - Dimensional Bullseye          Hexes/Translocation           4
     c - Metabolic Englaciation        Hexes/Ice                     5
     d - Discord                       Hexes                         8
(57, -2, D:1)
  a hobgoblin corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a ball python corpse (skeletalised by now)
(1, 0, D:2)
  a +0 club
(1, 1, D:2)
  a hobgoblin corpse (skeletalised by now)
(6, 0, D:2)
  a scroll of fear
(19, -2, D:2)
  a hobgoblin corpse
(21, -4, D:2)
  a +0 dagger
  a goblin corpse
(25, -5, D:2)
  15 gold pieces
  a +0 spear
  a +0 leather armour
  a +0 helmet
  the hobgoblin corpse of Robin
(26, -5, D:2)
  a +0 club (still there?)
  a +0 club (still there?)
  a +0 antimagic sling (still there?)
  a +0 dagger (still there?)
  a goblin corpse (still there?)
(28, -2, D:2)
  a +0 dagger
  an adder corpse
  a goblin corpse
(30, -1, D:2)
  a hobgoblin corpse
(37, -3, D:2)
  a +0 dagger
  a goblin corpse