Spirit Animals (IN PROCESS OF EDIT)

A book about magical beings who have spirits in the form of animals, the spirits can transform into normal animals, the magical beings can also have some kind of transformation. The magical beings are called Zendars, they live in the land of Corlea.
Humans are not allowed to know of the Zendar people. The is a bridge between these two worlds. If A Zendar is found, their magic powers are taken away for a month, but are released in case of an emergency.
There are spirit dogs, cats, wolves, deers, lions, fishes, mermaids, vampires (rarely), ect...