"Three interlocking worlds. Four people looking for answers. But who controls the future or the past? In 1960s Oxford, Professor Henry Lytten is attempting to write a fantasy novel that forgoes the magic of his predecessors, J. R. R. Tolkien and C. S. Lewis. He finds an unlikely confidante in his quick-witted, inquisitive young neighbor Rosie. One day, while chasing Lytten's cat, Rosie encounters a doorway in his cellar. She steps through and finds...