Description
In this high-stakes adventure, the mysterious and brilliant inventor Henderson unveils his greatest creation: the “Discus,” a revolutionary craft capable of both flight and underwater travel. When global tensions rise, the vessel becomes a pivotal tool in a daring rescue mission and a series of naval encounters. Alongside his companions, Henderson navigates the craft through perilous situations, outmaneuvering traditional warships and proving the technological superiority of his dual-purpose invention across the high seas.
It is one of the earliest examples of “Invention adventure” fiction for children









