When Wyoming author Dodge Graham buys a charming little painting at an estate sale, he has no idea that the canvas holds the power to turn his life upside down.

But when Dodge takes a closer look, he realizes that the pony in the painting bears a striking resemblance to one owned by his sister-in-law, Jan. Even stranger, the painting was finished a full fifteen years before Jan's pony was born.

Unwilling to let the matter rest, Dodge and his beautiful wife, Laurel, set out on a mission to figure out why and how the horses look so much alike.

As the couple chases the...