Williams, Jay

Danny Dunn goes fishing to try out a new invention and winds up saving a dam.

Danny knows the Professor is working on a new secret invention and is in danger, and when he and Professor accidentally switch on the new machine, problems get larger.

Because of the road sweeper's belief in him, a dragon saves the city of Wu from the Wild Horsemen of the north.

Two boys who are enemies at school find they must rely on each other when they are transported to a strange world parallel to the one on earth.

Danny Dunn and his friends search for a legendary serpent in Central Africa.

A young New Englander is unaware of the strange power in the Indian relic, a stone-carved bird, he finds buried in a cave.

Thorgeir Redhair learns of a great danger threatening his people and their foes, the Tyrnings, and of an even greater truth that will end their ancient quarrel.