4 sisters, Elsa, Merida, Rapunzel and Anna Coral are Mermaids and are Princesses and to top it all off they are spies.
4 best friends, Jack Frost, Hiccup Haddock, Kristoff Bjordman and Eugene Fritzherbert are Werewolves and are the most popular guys and to top it all off they are spies.
The boys follow the girls and find out two of their secrets and the boys tell the girls that their Werewolves and that the girls are their mates.
What kind of adventures embark upon each other?
Start Book: July 15th 2015
End Book: March 14th 2016