Undead Companion

Su A necromancer may begin play with a companion selected from the following list: human warrior skeleton, wolf skeleton, kobold zombie, human commoner zombie. This undead is a loyal, intelligent companion that accompanies the necromancer on his adventures until destroyed or released.
A 1st-level necromancer’s companion is completely typical for its kind except as noted below. As a necromancer advances in level, the undead’s power increases as shown on the table. If a necromancer releases his companion from service, he may gain a new one by performing a ceremony requiring an appropriate body and 24 uninterrupted hours of meditation. This ceremony can also replace an undead companion that was destroyed. When a necromancer achieves a level in which he may acquire a different undead companion, he may choose to have his previous companion demoted into his control pool. It no longer gains anymore abilities from being an undead companion but still retains any abilities it had acquired.