The Mysterious Dr. Q (Sweet Valley Twins)
You are getting sleepy . .  .Something very strange is going on at Sweet Valley  Middle School. It all started when the Mysterious  Dr. Q hypnotized Jessica Wakefield and her  classmates during a school assembly. They were so  impressed by Dr. Q's performance that they decided to  try a little hypnotism of their  own.The hypnosis works like a charm. Jessica  convinces Janet Howell and Amy Sutton that they're  twins, Lila Fowler that she was a duck in a past  life, and Elizabeth Wakefield that she's fallen in  love with obnoxious Bruce Patman! Can Jessica  snap her friends out of it . . . or will they be  spellbound forever?