Cast in Secret (Chronicles of Elantra #3)

Still avoiding magic whenever possible, Corporal Kaylin Neya relished investigating a regular theft once again. Until she found out the mysterious box was taken from Elani Street, where the mages and charlatans mingled, and it was sometimes hard to tell the difference between the two. But she was hoping this might be a mundane case-- --when in a back room Kaylin saw a lost-looking girl in a reflective pool...who called out Kaylin's name.

Shaken, Kaylin tried to stay focused on the case at hand. But since the stolen item was ancient, without a keyhole, and held tremendous darkness inside, Kaylin knew unknown forces were again playing with her destiny--and her life....