The Eternal

Kalypso has different dreams than the domesticated ones her mother has decided for her. A daughter of the Warden of The Prison, Kalypso has grown up learning how to be a lady and hating every second of it. If she had a choice, she would be a Bounty Hunter. However, there's only one rule that bars her from becoming a Bounty Hunter.
Rule #37: Women are not permitted to be Bounty Hunters.
However, when Kalypso's best friend is chosen to complete the mission of going after the Scarlet Wraiths, the most powerful gang of shapeshifters in any dimension, Kalypso decides to go in his place.

Zeph's father is a warlord in the War Dimension. Battles have been raging since the beginning of the dimension and there seems to be no stop to them. Zeph may follow the rules that his father lays out, but there is one secret he diligently keeps a secret: he's a shapeshifter nicknamed "The Eternal." When Zeph's second in command of the Scarlet Wraiths goes missing, Zeph must concoct a plan to break into The Prison--a place where no shapeshifter has ever broken out of before.