The Eighth Day

When Jax wakes up to a world without any people in it, he assumes it's the zombie apocalypse. But when he runs into his 18-year-old guardian, Riley Pendare, he learns that he's really in the eighth day - an extra day sandwiched between Wednesday and Thursday. Some people - like Jax and Riley - are Transitioners, able to live in all eight days, while others, including Evangeline, the elusive teenage girl who's been hiding in the house next door, exist only on this special day. And there's a reason Evangeline's hiding. She is a descendant of the powerful wizard Merlin....

After an all-out war with the evil Kin lord in Mexico, Jax Aubrey is back in Pennsylvania with his guardian, Riley, and liege lady, Evangeline. Although they're in hiding, a man named Finn Ambrose tracks them down, claiming to be Jax's uncle and giving Jax hope that he actually has a family after all. But Uncle Finn may have an ulterior motive. 

The battle between Kin and Transitioners that's been brewing for centuries has finally come to a head. The sinister Kin has captured Evangeline's younger sister, Addie, a descendant of Merlin whose presence will allow them to reverse the Eighth Day Spell and free themselves. Addie doesn't realize the full consequences of her cooperation. She's been helping the Kin because they value the strength of her magic - something Evangeline never did. The feeling of power coursing through her veins is impossible to resist.