I suppose I shouldn't be reading children's books, but I greatly enjoyed this one. Its set in 16th century Bohemia (Czech Republic), part of the Hapsburg Empire. Petra Kronos, the daughter of Mikal, sets out to retreive her father's eyes. Mikal, a craftsman in metal with magical abilities, has been working on a clock for Prince Rudolfo in Prague. The Prince had Mikal's eyes surgically removed in order to posess Mikal's magical skills. Rudolfo (who had his own eyes surgically removed and who can apparently switch his originals and Mikal's back and forth with no difficulty) was wrong in thinking that this would give him all of Mikal's skills, but hasn't yet realized this as he, Rudolfo, continues to work on the clock which is more than a clock. Petra sets out for Prague to retrieve the eyes and .... well I think I've said enough without spoiling it for those who want to read the book.