Club Alpha: BDSM Romance Boxed Set – Kindle edition by Amy Valenti, Sienna Stapleton, Terry Towers, Emilia Kincade, Selena Kitt, Malia Mallory, PJ Adams, Arden Aoide, Elsa Day, Juliette Jaye, Adriana Hunter, Sophie Sawyer, Candy Quinn. Romance Kindle eBooks @ Amazon.com.