"Wales" . . . . "Electronic books" . "Electronic books"@en . . . . . . . . "Glass Puzzle"@en . . . . . . . "Paranormal fiction" . . . "History" . "Juvenile works" . . . "The glass puzzle" . "Science fiction" . . "Adventure stories" . . "Fantasy fiction" . "Fiction" . . . "While spending the summer in Tenby, Wales, with their grandfather, American cousins ZoƩ and Ian assemble an old glass puzzle, inadvertently unleashing ancient forces that threaten the island and allowing them to travel into the past." . "Tenby (Wales)" . . "JUVENILE FICTION / General" . . . . "1063 - 1284" . .