Violator — Jonathan Christopher

In the third book of The Langsyne Chronicles our heroes discover the ancient Drakheyen Violator that has been hidden for eons. They can use that ship against Yvik Dardarious' Shadow Haven that is pummeling the Earth, randomly destroying parts of it while Yvik, immensely enjoying himself, watches the spectacle on his huge view screen. Draconis's own ship, the Argo, was taken by Yvik, he has recovered it and while escaping from the Shadow Haven is thrown back in time, alot further than he intended to go. While the Argo is in the ancient past his assorted crew members, humans, ylvyn, and dragons, are thrown into varied adventures of their own. Drac must return to the right time frame, not only to retrieve those of his comrades that were left behind, but also to fight Yvik Dardarious before the Earth is completely destroyed. The two titans, the Violators, Yvik's huge dark Shadow Haven and the golden Exodus, the ship that the ancient Drakeyen called the Elsian, battle far above Earth and through the Solar System, each attempting to destroy the other.