A haphazard spill of wine on an ancient Greek mosaic opens a passage to another world, drawing sisters Barb and Annabeth into peril. Soon they are separated and hunted by beings only described in Greek myths. Searching for his missing wife, Henry enters the realm of Helicos with his nephew in an attempt to rescue the women, but they soon find themselves in harm's way as well. Can the family reunite in this mysterious, ancient world and return home or will they be broken and destroyed by the magic and creatures of Helicos?