Book 1 of Clarence Budington Kelland's classic "Mark Tidd" series. An ingenious boy and his three friends meet danger and excitement in solving the mystery of t

Mark Tidd: His Adventures and Strategies, has been regarded as significant work throughout human history, and in order to ensure that this work is never lost, w

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "pub