The Eleventh Hour by Graeme Base
When Horace turns 11, he celebrates in grand style by inviting his friends to a splendid party. When the time comes for the birthday banquet, a most curious mystery will be revealed. Base has hidden messages that will keep sleuths searching happily for hours for the answer to the mystery.
Call Number: PZ 8.3 .B29 El 1993
ISBN: 0810932652
Publication Date: 1993-09-20