National Book Award finalist Laura Ruby and New York Times-bestselling illustrator Dung Ho bring us an unforgettable story of the many different ways in which families are made and the beautiful, unknowable, magical things that hold them together.

For as long as Molly can remember, it's always just been her and Dad. Dad, who likes to splash in the pool, who likes to spin at the park, who bakes the best cookies around.

But that was before Dad married Ms. Too.

Ms. Too doesn't like to splash. She doesn't like to spin. And she can't bake anything.

?But Molly, you used to love Ms. Too.?

That was before, when she was Molly's favorite librarian. Now everything has changed.

But as Molly and Ms. Too are about to discover, maybe change isn't always scary. Maybe change can be the best thing of all.

Laura Ruby is the author of books for adults, teens, and children, including Thirteen Doorways, Wolves Behind Them All and the Michael L. Printz Medal winner Bone Gap, both National Book Award finalists; the Edgar Award nominee Lily's Ghosts; and the Book Sense Pick Good Girls as well as the first two books in the York Saga. She is on the faculty of Hamline University's MFA in writing for children and young adults program and lives in the Chicago area. You can visit her online at www.lauraruby.com.