message from a lonely island where he had been shipwrecked
that he was able to do Mr. and Mrs. Nestor a valuable
service, and this increased the regard which Miss Mary
Nestor felt for the young inventor, a regard that bid fair,
some day, to ripen into something stronger.

Tom Swift might have made a fortune when he set out to
discover the secret of the diamond makers. But Fate
intervened, and soon after that quest he went to the caves
of ice, where he and his friends met with disaster. In his
sky racer Tom broke all records for speed, and when he went
to Africa to rescue a missionary, had it not been for his
electric rifle the tide of battle would have gone against
him and his party.

Marvelous, indeed, were the adventures underground, which
came to Tom when he went to look for the city of gold, but
the treasure there was not more valuable than the platinum
which Tom sought in dreary Siberia by means of his air
glider.

Tom thought his end had come when he fell into captivity
among the giants; but even that turned out well, and he
brought two of the giants away with him. Koku, one of the
two giants, became devotedly attached to the lad, much to
the disgust of Eradicate Sampson, the old negro who had
worked for the Swifts for a generation, and who, with his
mule Boomerang, "eradicated" from the place as much dirt as
possible.