IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 ring mail
(2, -19, D:1)
  3 stones
  a +0 club
(4, -20, D:1)
  a +0 mace
(4, -3, D:1)
  9 stones
(7, -4, D:1)
  a +0 club
(13, -31, D:1)
  a +1 scale mail of willpower
(13, -2, D:1)
  a +0 dagger
(22, -11, D:1)
  a +0 club
  2 stones
(23, -1, D:1)
  a +0 hand axe
(26, -8, D:1)
  a +0 dagger
(42, -30, D:1)
  6 stones
(42, 10, D:1)
  a +0 short sword

Level 2 of the Dungeon
(0, 0, D:2)
  a frilled lizard corpse (skeletalised by now)
(2, -23, D:2)
  a bat corpse (skeletalised by now)
(2, -16, D:2)
  a +0 short sword
  3 stones
(10, -36, D:2)
  an adder corpse
(13, -18, D:2)
  a +0 chain mail
(15, -42, D:2)
  a +0 short sword
  a +0 leather armour
(15, -39, D:2)
  a potion of heal wounds
(19, -36, D:2)
  a frilled lizard corpse
(30, -34, D:2)
  a rat corpse (skeletalised by now)