Masters of Time — Dennis Lee

SEVENTH GRADERS J.J. AND HENRI HAVE THEIR MYSTERIOUS Saros stones, and they are about to use them again. In this, the second book in the series, controlling time becomes easier for them, especially after they accidentally learn about each other???s powers. Two kidnappings and two accidents require their time-stopping powers as the story progresses. Working together provides both tears and joy. Much to their surprise, their bracelet and necklace both disappear. They share adventures and soon learn about an invasion they must deal with. Dr. M, their sixth grade teacher, becomes a middle school counselor and takes a leading role in guiding J.J. and Henri. The Saronian prophecy nears fulfillment as the final two members are selected to join J.J. and Henri in preparation for the upcoming battle to save Earth, and hopefully, Saros.