Michael Reaves

Joey Harker is just a very average kid, until the day he accidentally walks right out of his own world and into another dimension. Joey discovers that his Earth is only one of a trillion alternate realities in the Altiverse. Some of these worlds are ruled by ancient magic, others by advanced science, and all of them are locked in a devastating war. To survive, Joey must team up with an army made entirely of alternate versions of himself. Together, this squad of Joeys must battle ruthless magicians and sinister scientists to keep the balance of power stable across the multiverse. Packed with mind-bending travel, intense action, and incredible twists, this adventure will pull you into a universe where anything is possible.

Joey Harker has already saved the multiverse once, but the danger is far from over. In this riveting sequel to InterWorld, Joey is still learning how to navigate his incredible abilities as a Walker, traveling between a trillion alternate Earths. But a new, terrifying threat is rising, and the fragile balance between magic and science is threatening to shatter completely. If Joey has any hope of saving the Altiverse from total annihilation, he is going to have to rely on his wits, his courage, and the help of a mysterious Time Agent named Acacia Jones. Packed with mind-bending space travel, fierce loyalty, and shocking twists, this action-packed adventure proves that Joey is far more powerful than he ever realized.

The multiverse is on the brink of collapse, and Joey Harker is the only one who can hold it together. In this heart-pounding conclusion to the InterWorld series, Joey and his army of alternate selves face their greatest challenge yet. The forces of magic and science have been locked in a brutal war across a trillion alternate Earths, and the balance of power is finally shattering. To save the Altiverse from total destruction, Joey must push his abilities to the absolute limit, risking everything he has fought so hard to protect. Packed with mind-bending dimensions, fierce battles, and incredible bravery, this epic finale delivers a thrilling ride through time and space that will keep you guessing until the very last page.