A Little Witching at the Wall

What's a left-over hippie/would-be witch to do when her life falls apart? Marry a rich man, of course, and do some good in the world. Only he doesn't know she's a live. A love potion will fix that, if Lily can refrain from entangling the lives of a suicidal teacher, a bachelor who doesn't like teachers, a hit man, an East German guitarist, her Secret Police guardian, and a West German cop--all on the night when the Berlin Wall falls.