Fifth-grader Alison loves Sharkey, her adopted stray cat. But where did his mysterious collar come from, and why is he acting so weird? At the same time, Alison's best friend, Denise, seems to be ditching her for a mean but "popular" girl. Can Alison save her friendship, or at least her cat? Science genius Marvin thinks he has the answers, but no one foresees the hilarious outcome.

Beatrice Gormley is the author of many popular novels and biographies for young people. Most recent books: Barack Obama: Our 44th President; Pope Francis: The People's Pope; and John McCain, An American Hero.
Other books include Back to the Titanic! and Amelia Earhart, Young Aviator.

Beatrice lives in Massachusetts with her husband, Robert Gormley, and their cat.