In this action-packed middle grade fantasy, Spark the teddy bear and her team of fellow toys must team up once again to save their human owners from an unlikely threat.

After the events of Spark and the League of Ursus, everything is finally returning to normal when Spark is summoned before the mysterious Grand Sleuth, the high council of teddy bears, who haven't been heard from in decades. Spark finds them holding council in a local children's hospital, and they task her with locating and closing the remaining portals to the monsters' domain. But in the course of her investigation, Spark discovers that the Grand Sleuth is not what it seems: to save themselves, they have formed a terrible alliance with an army of monsters. Spark must enlist the help of her friends, together with her former enemy Jakmal, to stop the Grand Sleuth from ripping a hole between worlds so big that it can never be repaired. Meanwhile, she begins to realize that harnessing the growing power of Loretta, her owner, may be the key to saving them all...

Featuring a new cast of characters, new settings, and tons of thrills, scares, and humor, this exciting next installment in the series is sure to delight fans of Toy Story and Stranger Things, kids love who monsters and magic, and anyone who's ever held a teddy bear close at night.