In reading order
The Cassie Quinn Series: Books 1-3
L.T. Ryan
Path of Bones
L.T. Ryan, K.M. Rought
Whisper of Bones
L.T. Ryan, K.M. Rought
Symphony of Bones
L.T. Ryan, K.M. Rought
The Cassie Quinn Series: Books 4-6
L.T. Ryan
Etched in Shadow
L.T. Ryan, K.M. Rought
Concealed in Shadow
L.T. Ryan, K.M. Rought
Betrayed in Shadow
L.T. Ryan, K.M. Rought
Born from Ashes
L.T. Ryan, K.M. Rought
Return to Ashes
L.T. Ryan, K.M. Rought
Risen from Ashes
L.T. Ryan, K.M. Rought