Young Happenstance has had enough excitement to last a lifetime, but his peripatetic mentor, Lord Umber, is constantly curious. Thus, they are off again in search of mysteries, bidmis, and dragon games. No smooth sailing here, as danger looms at every turn and not even kings are safe. Round two in the Books of Umber delivers more imaginative adventures and tantalizing hints about Hap’s past and Umber’s hopes for him. Catanese is still laying groundwork (the assassination subplot sits apart from the main story), but readers will find plenty of satisfying action and lots of narrow escapes. Grades 5-8.