Charlotte's Web meets My Sister's Keeper in this charming story told from the alternating perspectives of a boy with a fatal heart condition and the pig with the heart that could save his life.

Jeremiah's heart skips a beat before his first soccer game, but it's not nerves. It's the first sign of a heart attack. He knows he needs to go to the hospital, but he's determined to score a goal. Charging after the ball, he refuses to stop...even if his heart does.

J6 is a pig and the only one of his five brothers who survived the research lab. Though he's never left his cell, he thinks of himself as a therapy pig, a scholar, and a bodyguard. But when the lab sends him to live with Jeremiah's family, there's one new title he's desperate to have: brother.

At first, Jeremiah thinks his parents took in J6 to cheer him up. But before long, he begins to suspect there's more to his new curly-tailed companion than meets the eye. When the truth is revealed, Jeremiah and J6 must protect each other at all costs--even if their lives depend on it.