One

Silas was gone. Kidnapped in the night. The only suspect was Corbin and Silas' father. But with no leads and no idea where Silas could be, Maverick was a ticking time bomb.
After a month of nothing, a note arrived. Only saying one thing, Castle. Silas' scent covered the paper. It gave hope to Maverick, Grayson, and Corbin.

Maverick will get Silas back.
You don't mess with a wolf's mate.
Beware The Alpha, and don't look back. Or the consequences will be dire.