"Soft frame" Book by A. Conan Doyle "Marakot's abyss", 1944

The book is in good collector's condition, tears, minor losses. The so—called "Soft Frame" is a small series of books produced by Detgiz in 1943-1948 under the heading "Library of Science Fiction and Adventure". The books were published in paperback, without serial design, with a volume of 20 to 80 pages. A total of 16 such books have been published. The edition is rare.

The novel describes the expedition of Professor Marakot, who, with his companions, biologist Cyrus Headley and mechanic Bill Scanlan, descends using a bathysphere—type apparatus into the deep—sea depression of the Atlantic Ocean (located 200 miles southwest of the Canary Islands), where he discovers a sunken city inhabited by the descendants of the Atlanteans. The publication was signed on December 24, 1943, and was published in April 1944. Guarantee of authenticity.