Descartes

Level 4 of the Dungeon
(0, 8, D:4)
  a scroll of identify
(6, 2, D:4)
  a +0 trident

Level 5 of the Dungeon
(4, 5, D:5)
  a cursed +0 spear
(38, -23, D:5)
  17 gold pieces

an ossuary
(6, -1, Ossuary)
  the felid corpse of Descartes
(8, 15, Ossuary)
  a potion of haste
(8, 16, Ossuary)
  a potion of flight
(8, 17, Ossuary)
  a potion of haste
(9, 15, Ossuary)
  a potion of curing
(9, 16, Ossuary)
  21 gold pieces
(9, 17, Ossuary)
  a scroll of identify
(10, 15, Ossuary)
  a scroll of magic mapping
(10, 16, Ossuary)
  a +0 great sword
(10, 17, Ossuary)
  a potion of mutation
(11, 15, Ossuary)
  2 potions of invisibility
(11, 16, Ossuary)
  a potion of flight
(11, 17, Ossuary)
  a potion of heal wounds