Monstrous Devices 
When Alex receives an old tin robot in the post, the note from his grandfather reads: "This one is special".
But it doesn't take Alex long to suspect that the toy is more than special - it might also be deadly.
Just as things are getting out of hand, Alex's grandfather arrives, whisking him away into a world of strange, macabre magic. From Paris to Prague, they flee across snowy Europe in a quest to unravel the riddle of the little robot.
Will Alex work out the robot's secrets before it falls into the wrong, wicked hands?
 
The Shadow Arts
When Alex's grandfather sent him a tin robot with strange powers, his world changed forever....
Now, Alex must help his grandlather rescue his old friend Harry, who has fallen into the clutches of a formidable foc. The duo's mission takes them on a desperate dash across Europe, chasing down the mystery Harry was investigating when he disappeared.
But can Alex work out the ancient secret that lies hidden in the depths of Germany's Black Forest and harness the powers of his robot before it's too late? Innocent lives - and even history itself - are at stake.