IndexError

Level 1 of the Dungeon
(4, 17, D:1)
  a ball python corpse
(5, 16, D:1)
  a dart slug corpse
(8, 8, D:1)
  a jackal corpse
(8, 15, D:1)
  a giant cockroach corpse
(9, 7, D:1)
  a quokka corpse
(9, 15, D:1)
  a +0 dagger
  a goblin corpse
(9, 21, D:1)
  a +0 short sword
  a kobold corpse
(13, 17, D:1)
  a quokka corpse
(16, 3, D:1)
  a potion of attraction
(21, 17, D:1)
  a +0 short sword
(30, 19, D:1)
  a ring of flight {+Fly, !d}