The End of Time(Books of Umber‪)‬

Popular children's author P.W. Catanese draws the adventures of the Books of Umber to an exciting conclusion. Still unable to control the powers he needs to save the old world of Umber, Hap's time draws short as threats come from every direction. Hap will be put to a final test as he confronts powerful enemies-but he'll soon discover that success requires great personal sacrifice. "Catanese has imagination to spare, with new wonders around every corner."-School Library Journal