Archibald is a changed boy. He stands up to bullies and hangs out with the gargoyles that used to scare him. But for all his new toughness, he's also a lost boy who misses his friends in Lemurea. When strange footprints are discovered on the manor grounds, he realizes a piece of that world has followed him home... Without golems, witches or magic, Archibald knows there's little to stop what's prowling the London suburbs, which means he'll have to return to Lemurea to seek Faerydae's help. In a new adventure for Archibald, Hailee, Oliver, and Faerydae, two worlds collide—two worlds with more in common than any of the kids could’ve imagined. A hunt for clues, golems, and Marodors unearths some shocking answers and hard truths as Archibald and his companions embark on yet another daring journey that tests each of them in different ways.