When Lukas Declercq is orphaned, his uncle summons him to Prague, a refuge for Europe's greatest alchemists and natural philosophers, offering to take him on as an apprentice. Uncle Anselmus is court physician to Rudolph II, the reclusive and unstable Emperor. As Rudolph retreats into his fantasy world, the threat of rebellion hangs in the air.
Genre: Juvenile Fiction
Subgenre: Westerns, Action + Adventure / General, General, Historical / Europe