Danny Dunn on the Ocean Floor is the fifth novel in the Danny Dunn

Danny Dunn

Danny Dunn is the name of a fictional character and protagonist of a series of juvenile science fiction/adventure books written by Raymond Abrashkin and Jay Williams, in the 1950s, 1960s, and 1970s...

series of juvenile science fiction/adventure books written by Raymond Abrashkin

Raymond Abrashkin

Raymond Abrashkin was an American writer best known for writing, co-producing, and co-directing the acclaimed movie, The Little Fugitive, and for co-creating and co-authoring the highly successful Danny Dunn series of science fiction books for children with Jay Williams.-Family:Raymond's parents...

 and Jay Williams

Jay Williams (author)

Jay Williams was an American author born in Buffalo, New York, the son of Max and Lillian Jacobson. He cited the experience of growing up as the son of a vaudeville show producer as leading him to pursue his acting career as early as college...

. The book was first published in 1960.

Plot

Another accident in Professor Bulfinch's laboratory, instigated by Danny, results in the creation of a transparent, resilient material. The material proves useful in creating a bathysphere, and Professor Bulfinch, along with his friend Dr. Grimes, Danny, Joe, and Irene, descends into the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

on an experimental voyage. Unfortunately, the bathysphere's pilot is rendered unconscious, and the bathysphere becomes trapped in a cave.

Editions

McGraw-Hill

• (Paperback, 1960, illustrated by Brinton Turkel)
• (Hardback, 1960, illustrated by Brinton Turkel)

MacDonald and Jane's

• Hardback, 1967, illustrated by Dick Hart)

Pocket Books/Archway Books

• (Paperback, 1979, #9 in their series, illustrated by Brinton Turkel)
• (Paperback, 1983 reissue, illustrated by Brinton Turkel)