Descartes

Level 4 of the Dungeon
(0, 0, D:4)
  a scroll of identify
(7, -7, D:4)
  15 gold pieces
(11, 8, D:4)
  17 stones

Level 5 of the Dungeon
(0, 0, D:5)
  2 potions of invisibility
(1, -1, D:5)
  10 gold pieces