In a dark and hulking mansion in Victorian London, England lives a girl named Avaline Baines. Her life and passion is devoted to her work--assistant to the mysterious and brilliant young Doctor Peregrine Tolworth. Some say the doctor is eccentric, some say he's troubled, and most say he's mad. Avaline, however, believes there's much more to him. When the doctor is suspected of a mysterious and gruesome murder, Avaline takes it into her hands to prove her employer is not guilty. In her search for the truth, however, will she find proof of the doctor's innocence--or proof of the madness in him that she has always denied?

Dave's agreement with Doc and Sally is to help the two adventurous scientists disappear into the future. But being left behind by the closest people Dave has to family isn't the bargain the eighteen-year-old expected. When Dave follows after his mentors, calibration issues place him centuries past his target date. Countless years and miles of wilderness separate him from Doc and Sally. Dave must survive in a primitive new world that has been waiting for him for a very . . . long . . . time . . .