Flubber

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(14, -10, D:1)
  28 sling bullets
(14, 5, D:1)
  10 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 chain mail
(1, 9, D:2)
  an uncursed ring of stealth