Prestige Classes

Warlock
Warlocks are intelligent beings that have made an agreement to serve some greater power in the Upper or Lower Plains.  In exchange for this agreement the Warlock gains various special abilities from the higher/lower power and access to the ability to summon beings from these planes.  It is possible to surpass an original master as a Warlock and be sold or traded to another within the same plane.
HD: d6

Requirements:
Race: any magically gifted,
Base Attack Bonus: +1
Skill level +6 in Wards, Research, Spellcraft, Knowledge Celestial/Demons, Scry
Any five summoning spells at least one being 5th level or higher.
Demon/Celestial Pact (explained later)

Class Skills
Concentration, Wards, Research, Spellcraft, Knowledge (all taken individually) , Scry, Profession Summoner,  Art (symbols), Alchemy, Appraise, Diplomacy, Bluff, Intimidate, Sense Motive

Class Features
Demon/Celestial Pact