Meg Rosoff creates a quirky and believable character in Mila, who sets off from England to upstate New York with her father to visit his childhood friend. Mila can "read" people, emotions, even animals, so when her father's friend goes missing, she's able to help solve the mystery.
This book is hard to categorize, and definitely requires some selling because it's not one that can be sold simply to kids who like mysteries or realistic fiction. I've found readers of Rebecca Stead or Gae Polisner have enjoyed this book. Definitely some memorable characters, and enough plot twists to engage the reader willing to step beyond best-selling series books. Appropriate for grades 6 and up.