All in a Dream: The Witches' Ride - The Witches of Isle Royale, #2

In a near future when America is fragmented and nothing is like it was, unlicensed private investigator Kim Murayama has returned to the vast metro area of the M. He leaves behind the distant, prohibited Isle Royale and the mysterious, enchanting witch people cloned by Wilmut, Inc. He's left behind Mick the Witch, forsaking love. The impossible adventure is over. Only it isn't. From the bottom of a black pool of nightmares, haunting a world of dreams, comes the malignancy of Dengra Heks and the vengeance of the Darkness.