Xiguana

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin corpse
(2, 8, D:1)
  a giant cockroach corpse
(3, 0, D:1)
  21 sling bullets

Level 2 of the Dungeon
(0, 0, D:2)
  a potion of mutation
(9, -10, D:2)
  an uncursed ring of ice