Companions and Familiars: O
1 companions and familiars, from Old Friend to Old Friend.
Old Friend
Familiar
Required Number of Abilities 4
Granted Abilities flier
Invisibility Once per hour, your familiar can cast 2nd-level invisibility on itself as a divine innate spell.
Anchored Incorporeality Anchored Incorporeality
Undead Your familiar is undead. It has negative healing and is immune to death effects, disease, poison, and unconscious. It's destroyed at 0 HP.
Book of the Dead, page 40.