Your companion can become invisible.
Prerequisite: Bonded creature 4th-level
Benefit: Your bonded creature always registers as a nonmagical and of neutral alignment. Undead bonded creatures can register as objects instead of undead. Any other divination spells aimed at the bonded creature requires a successful caster level check (DC 14 + plus your associated class level). For example, an opponent would be required to make a successful caster level check to see your invisible bonded creature with a see invisibility spell.