Why

Level 1 of the Dungeon
[Shop] Sorynwyu's Antique Weapon Shoppe
  (Shop contents are unknown)
[Shop] Cuilliq's One-of-a-Kind Rings
  a +8 ring of slaying (unknown) (1609 gold)
  a +10 ring of intelligence (1183 gold)
  a +3 ring of evasion (unknown) (130 gold)
  a +2 ring of protection (unknown) (130 gold)
  a +3 ring of strength (unknown) (130 gold)
  the ring "Jianup" {^Drain Fly rN+ Int+2 SInv} (349 gold)
    [ring of see invisible]
    
    ^Drain:    It drains your maximum health when unequipped.
    Fly:       It grants you flight.
    rN+:       It protects you from negative energy.
    Int+2:     It affects your intelligence (+2).
    SInv:      It lets you see invisible.
  a +9 ring of dexterity (unknown) (1014 gold)
  a +8 ring of evasion (unknown) (1014 gold)
  the ring "Xuxzaon" {rPois rF+++ rC+ Dex-2 Slay+2 RMsl} (1162 gold)
    [ring of protection from cold]
    
    rPois:     It protects you from poison.
    rF+++:     It renders you almost immune to fire.
    rC+:       It protects you from cold.
    Dex-2:     It affects your dexterity (-2).
    Slay+2:    It affects your accuracy & damage with ranged weapons and melee
    (+2).
    RMsl:      It protects you from missiles.
(0, 1, D:1)
  a hobgoblin skeleton
(1, 7, D:1)
  a bat skeleton
(3, 19, D:1)
  a jackal skeleton
(4, 15, D:1)
  a jackal corpse (skeletalised by now)
  a jackal corpse (skeletalised by now)
(9, -12, D:1)
  a jackal skeleton
(11, -12, D:1)
  a +0 leather armour
(11, -1, D:1)
  a bat skeleton
(12, 8, D:1)
  a hobgoblin skeleton
(12, 13, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(14, 23, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(15, 6, D:1)
  a ball python skeleton
(16, 6, D:1)
  a +0 dagger
  a goblin skeleton
(16, 18, D:1)
  a rat skeleton
(17, -5, D:1)
  a +0 short sword
(36, 14, D:1)
  a +0 ring mail
(36, 40, D:1)
  a +0 club
(39, 10, D:1)
  a +0 robe
(42, 14, D:1)
  a hobgoblin skeleton
(42, 19, D:1)
  a quokka corpse (skeletalised by now)
(44, 32, D:1)
  a hobgoblin corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a parchment of Cause Fear
(5, -41, D:2)
  a serpent talisman
(6, -4, D:2)
  a +0 whip
  3 stones
  a rat corpse (skeletalised by now)
(7, -4, D:2)
  a +0 whip
  3 stones
  a kobold corpse (skeletalised by now)
(9, -41, D:2)
  a +0 robe
(9, -17, D:2)
  a +0 ring mail
(11, -34, D:2)
  a +0 club
(18, 2, D:2)
  a +0 ring mail
(25, -10, D:2)
  a +0 quarterstaff of holy wrath
  a +0 robe
  a goblin skeleton
(26, -5, D:2)
  an adder corpse (skeletalised by now)
(28, -6, D:2)
  a bat corpse (skeletalised by now)
(29, -36, D:2)
  a bat skeleton
(29, -15, D:2)
  a +0 short sword
(35, -35, D:2)
  a rat skeleton
(37, -33, D:2)
  a +0 spear
  a gnoll skeleton
(37, -3, D:2)
  a +0 dagger
(40, -12, D:2)
  a +0 whip
  a gnoll skeleton
(42, -40, D:2)
  a +0 hand axe
(42, -16, D:2)
  a dragon-coil talisman
(45, -22, D:2)
  a +0 club
  a gnoll skeleton
(48, -18, D:2)
  a +0 club
(49, -22, D:2)
  a ball python corpse (skeletalised by now)
(52, 7, D:2)
  a rat corpse (skeletalised by now)

Level 3 of the Dungeon
[Shop] Watam's Antique Scrolls
  a scroll of amnesia (100 gold)
  a scroll of enchant armour (187 gold)
  a scroll of enchant armour (187 gold)
  a scroll of silence (237 gold)
  a scroll of enchant armour (187 gold)
  a scroll of noise (25 gold)
  a scroll of fog (100 gold)
  a scroll of vulnerability (100 gold)
  a scroll of blinking (237 gold)
  a scroll of identify (50 gold)
(7, -4, D:3)
  a jackal skeleton
(10, -6, D:3)
  a hobgoblin skeleton
(11, -5, D:3)
  a +0 leather armour
(17, 2, D:3)
  a +0 dagger
(23, 10, D:3)
  a rat corpse (skeletalised by now)
(24, 29, D:3)
  a bat corpse (skeletalised by now)
(26, 29, D:3)
  an adder corpse (skeletalised by now)
(29, 3, D:3)
  a rat skeleton
(30, 3, D:3)
  a +0 short sword
  a +0 leather armour
  a +0 club
  an orc skeleton
  an orc skeleton
(31, 4, D:3)
  a +0 ring mail
  a +0 falchion
  an orc skeleton
(34, 1, D:3)
  a +0 club
  an orc skeleton
(40, 12, D:3)
  a rat skeleton
(40, 18, D:3)
  a +0 whip
  a +0 leather armour
  an orc skeleton
(43, -10, D:3)
  a ball python skeleton
(43, 15, D:3)
  an adder skeleton
(44, 19, D:3)
  a +0 short sword
(46, -10, D:3)
  a +0 long sword
(54, 35, D:3)
  a +0 whip
  5 stones
  a kobold corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 club
  a stone
(6, 27, D:4)
  12 gold pieces