The Marvelous Inventions of Alvin Fernald
First published in the 1960s, these two mysteries feature a boy inventor. In the first book, Alvin uses a periscope to search out a missing neighbor; in the second, he learns about decoding and uncovers a mystery involving a hostage and buried treasure. Ages 8-12.Copyright 1998 Reed Business Information, Inc.--This text refers to an out of print or unavailable edition of this title.