Efficiency

Level 5 of the Dungeon
(0, 0, D:5)
  10 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  a scroll of identify
(3, 7, D:6)
  13 arrows
(8, -1, D:6)
  a manual of Spellcasting
(12, -7, D:6)
  the Grimoire of the Excruciating Entourage
    Spells                            Type                      Level      
    Known
     a - Shock                         Conjuration/Air               1         
    no
     b - Call Canine Familiar          Summoning                     3         
    no
     c - Monstrous Menagerie           Summoning                     7         
    no
     d - Fire Storm                    Conjuration/Fire              9         
    no
(14, 3, D:6)
  a scroll of vulnerability
(18, -1, D:6)
  14 gold pieces