Her elusive cousin Tyler is the perfect subject: androgynous, beautiful, and famous. All she needs to do is pin him down for the sittings.None of her plans factored in the Spires: featureless, impossible, spearing into the hearts of cities across the world - and spraying clouds of sparkling dust into the wind.Is it an alien invasion? Germ warfare? They are questions everyone on Earth would like answered, but Madeleine has a more immediate problem. At Ground Zero of the Sydney Spire, beneath the collapsed ruin of St James Station, she must make it to the surface before she can hope to find out if the world is ending.

    He used to do brave things like go tramping through the forest with his gran after dark. He loved the stories she told him about the world before the Destruction--about nature, and books, and the silver owls. His favorite story, though, was about the Owl Keeper. According to Max's gran, in times of darkness the Owl Keeper would appear to unite owls and sages against the powers of the dark. Gran is gone now, and so are her stories of how the world used to be. Max is no longer brave. The forest is dangerous, the books Gran had saved have been destroyed, and the silver owls are extinct. At least that's what the High Echelon says. But Max knows better. Maxwell Unger has a secret. And when a mysterious girl comes to town, he might just have to start being brave again. The time of the Owl Keeper, Gran would say, is coming soon.

    Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course.Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it. First stop: Spain, 1492, where a sailor named Christopher Columbus is about to be thrown overboard in a deadly mutiny!

    As Mark searches for a pathway back to his own time on Earth, he must make a new life in a new world. His encounters with primitive tribes bring the joy of human bonds, but violence and war as well—and, finally, a contest in which he discovers his own startling powers.