A brilliant, touching coming-of-age story, and a Newbery Honor Book.

Martha Boyle and Olive Barstow could have been friends, but they weren't. Weeks after a tragic accident, all that is left are eerie connections between the two girls, former classmates who both kept the same secret without knowing it.

Now, even while on vacation at the ocean, Martha can't stop thinking about Olive. Things only get more complicated