Danny Dunn and the Swamp Monster

Danny Dunn and the Swamp Monster is the twelfth novel in the Danny Dunn series of juvenile science fiction/adventure books written by Raymond Abrashkin and Jay Williams. The book was first published in 1971. An audiobook of the work was released by the Listening Library in 1985.

Plot introduction
Professor Bullfinch and Doctor Grimes take Danny and his friends to the beginning of the Nile River in Africa to investigate local legends of a swamp monster. Despite unforeseen calamities, a new, rare species of electric catfish is discovered..

Editions
McGraw-Hill
 * Paperback, 1971, illustrated by Paul Sagsoorian
 * Hardback, 1971, illustrated by Paul Sagsoorian

MacDonald and Jane's
 * ISBN 0-356-03965-X (Hardback, 1972, illustrated by Anne Mieke

Archway Books
 * Paperback, 1979, #6 in their series

Pocket Books
 * Paperback, 1983 reissue, illustrated by Paul Sagsoorian