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??Azan-gund "Night Caller":
::This whistle is carved from rare transparent iron (nephelium), and it resembles a small dragon curled up like a snail. The name Azan-gund is etched on the whistle in Dwarven runes. A detect magic spell reveals a faint necromantic aura, while an identify spell reveals how the item works.
When the whistle is blown over a grave in darkness or at night, one corpse below animates, as per animate dead cast at 5th level and claws its way out (if interred in soft earth or under loose stones). The zombie or skeleton serves the whistler faithfully until it is destroyed. A bearer can use the whistle once per tenday; the whistler can acquire no more than 10HD of undead in this manner. Good-aligned characters risk an alignment change if they use it regularly. A successful Knowledge (Arcana) check or bardic knowledge check (DC 15) reveals that ancient “dark” dwarves made several such whistles for various groups in an age past.
Caster Level: 5th; Prerequisites: Craft Wondrous Item, animate dead, Profession (blacksmith), 1 lb. of nephelium; Market Price: 3,000 gp; Weight 1 lb.
Updated to 3.5 rules. Original Source (Sunless Citadel).!!