Invisibility to Animals

When an invisibility to animals spell is cast by a druid, the recipient of the magic becomes totally undetectable with respect to normal animals with Intelligence under 6. 

Normal animals includes giant-sized varieties, but it excludes any with magical abilities or powers. 

The magicked individual is able to walk amongst animals or pass through them as if he or she did not exist. 

For example, this individual could stand before the hungriest of lions or a tyrannosaurus rex and not be molested or even noticed. However, a nightmare, hell hound, or winter wolf would certainly be aware of the individual. 

The material component of this spell is holly rubbed over the individual.