Regina and Renata are truly identical twins. They are so strikingly alike, even their mother can't tell them apart. Since their DNA is identical and their infant footprint records were lost by the hospital, no one can be sure which is which. This doesn't bother the twins. In fact, they're inseparable--until one of the young women is murdered. The other has no memory of the event, no idea who she is. In her near-total amnesia, she can remember only family friend Mark, who has always been a surrogate big brother to the twins. And Mark finds himself fearing that the effects of the trauma don't end with amnesia, for now a series of vicious murders terrorizes Seattle, accompanied by the howl of wolves.... A perhaps-supernatural thriller, Regina's Song is also a novella-length idea padded to 400 pages of novel. It may please young-adult readers, but it won't satisfy many experienced thriller fans. The plot twists aren't all that numerous or complex, and the cutesy dialogue in this turn-of-the-millennium novel seems more suited to the 1950s. --Cynthia Ward