Proton

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(4, 7, D:1)
  a cursed +0 robe
(5, 1, D:1)
  a stone
(5, 2, D:1)
  a stone
(5, 7, D:1)
  a potion of invisibility
(6, 3, D:1)
  2 stones
(7, -6, D:1)
  a +0 hand axe
(10, -11, D:1)
  19 stones