The Netbook of Witches and Warlocks
By Timothy S. Brannan and The Netbook of Witches and Warlocks Team
This spell will summon a winged celestial Unicorn (as the Half-Celestial template in Core Rulebook III) to serve you for one day. The caster must be outside at night to begin the summoning. This creature can fly at 90 (average)
The Unicorn will serve the caster as her mount till sunrise. At sunfall the pegasus will return to the Celestial Planes.
The spell components for this spell are a pinch of silver dust and an old horseshoe.