IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(2, 14, D:1)
  a +0 dagger
(3, 24, D:1)
  a +0 club
(9, 21, D:1)
  a +0 ring mail
(12, 29, D:1)
  a +0 robe
(13, 23, D:1)
  a +0 dagger
(15, 6, D:1)
  a +0 short sword
(17, -13, D:1)
  a +0 dagger
(19, 11, D:1)
  a +0 club
(29, 11, D:1)
  a +0 dagger
(30, -23, D:1)
  a +0 club
  3 stones
(37, -11, D:1)
  a +0 spear
(39, 5, D:1)
  a +0 short sword
(52, -9, D:1)
  a +0 club
(54, -23, D:1)
  a +0 leather armour

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 short sword
(17, 14, D:2)
  a +0 dagger
(23, 10, D:2)
  a +0 whip
  a kobold corpse