The Wizard Twins II (De tovenaarstweeling II)

Upon his arrival on Earth, Lyam is captured by his ruthless uncle Dwaine. With Anne's help he manages to escape. He learns the secrets of earthly magic from her family. The threat is not over. Black dwarfs, sent by Dwaine, are hot on his heels. In the conflict, Dwaine flees to an unknown world.
With Anne and the Viking Ivar, Lyam travels across dangerous paths, stormy seas and mysterious space gates in search of answers.
Dragon rider Lianne learns from the dragon king Xeres r the secret of the legendary Draci's: the diadem of power, a weapon that once destroyed an entire world. The Dracis vowed never to use it again. Now their oath is being tested. Lianne goes to war against the black dwarfs. A fight that demands blood and sacrifices.
On the world of elves, Lyam and Lianne's paths cross again. His journey takes him to the world of the Picts. The question remains: are they still in time to reverse the fate? Or is the force they are trying to stop long out of control?