Jake Djones' parents have gone missing and they could be anywhere in the world - at any time in history. Because the Djones family have a secret, which they've managed to keep - even from each other. They belong to the HISTORY KEEPERS: a secret society which travels through the centuries to prevent evil enemies from meddling with History itself.

Stocks of Atomium - the crucial ingredient which allows them to travel through time - are perilously low, and the agents must embark on a risky mission to find more. This title takes us into the heart of the ancient world, from the doors to Hades, to the streets of Rome at the height of its glorious empire.

When shocking news reaches the History Keepers' headquarters, Jake Djones is sent head-first into a new adventure. The time-travelling agents voyage from Shakespeare's England to Imperial China in pursuit of their most villainous foe yet, Xi Xiang, whose aim is to destroy trade links between east and west and throw the world into war.

Valentyne has lived many lives - physician, philosopher, soldier - but his defining work has been his ability to stop the clock. He has lived for centuries, as has his dog, Tomorrow.

Inseparable, theyve voyaged across Europe, using their time wisely. Theyve attended royalty in a dozen courts, healed soldiers on a hundred battlefields, and met with the greatest minds of the Renaissance. Until one day, in watery Venice, Valentyne vanishes without trace.

Broken-hearted, Tomorrow begins a search that will endure for centuries. But as the continent collapses into war, he must risk everything to...