Worlds Colliding (Teen Wolf) Book Six

Stacie Stilinski knows that her brother Stiles is missing and was taken by the Ghost Riders, and even when nobody believes her and thinks she's crazy for trying to search for someone who may not be real, she is willing to do everything to bring her brother back.
Ari Martin is the only one that never doubts Stacie because she knows what Stacie's been through and that Stacie's intuition is almost never wrong. So she is willing to go to the ends of the Earth to help her best friend get her brother back.
Tara Hale knows that more than one person from her life is missing. When Peter comes back to try and make amends to both her and her cousin Malia, Tara must deal with the uncle that has caused her so much pain and anger and try to overcome the past to work with him and defeat the Hunt.
Natalie Lahey is the one of the pack that has been a Werewolf the longest, has gone through the most out of the younger people in the pack, so everyone decides that it's best that Natalie be their leader for when the seniors set off for college, and Natalie has to learn how to be their leader with the help of Scott, Ari, Tara, Adriana and Liam.
Adriana Martin is dealing with her past issues of Theo and the Dread Doctors, while also trying to learn how to control herself now that the link to Ari is broken, and the darkness and anger inside of her is lashing out.
Angel Fain finally knows that she's a Valkyrie that is stronger than pretty much everyone of the pack, but she is still trying to figure out how to use her powers. With the help of her boyfriend, the half-falcon, half-Werewolf Chimera Chayton Ruelle, can Angel finally access her potential as the half-Hellhound, half-Raven Valkyrie?
The pack has to work together and separately to stop the Wild Hunt, Douglas and the Ghost Riders, and get everyone, including Stiles, back. But can they do it?