Vivienne Small's world is under threat. A winged dog has fallen from the sky bearing an ominous note and vercaka have invaded the City of Clocks. Meanwhile in the real world, famous writers are turning up far from home, injured and confused, and Tuesday McGillycuddy and Serendipity Smith - the most famous writer of all - could be next! Suddenly whisked away to the world of story, Tuesday must learn the identity of the mysterious G, and find out why he is losing control of the worlds. But how can Tuesday, Vivienne and Baxter solve the mystery and end the mayhem without losing themselves?.