Two friends, Ana and Harmony, find themselves involved in a strange situation involving a violin case said to be once owned by Albert Einstein. The case is supposed to have a secret formula focusing on the use of gravity which several people including physicists and spies want. Of course, there are chases and strange encounters with those who are certain that the formula is hidden in the case or that Ana has it herself. The tale winds around the crazy antics and experiences of the two women as they work to avoid these individuals and look for the formula which they cannot find. Obtained the book from a PBS friend who was happy to share it. This is the author of another book I need to check out: Listening for Coyote.