the wreck of Proteus was left in Benes. In a subsequent meeting with Jaffe, he insisted that he would have to change the ending so that the submarine was brought out. Asimov also felt the need to gain permission from his usual science-fiction publisher, Doubleday, to write the novel. Doubleday did not object, and had suggested his name to Bantam in the first place. Asimov began work on the novel on May 31, and completed it on July 23. Asimov did not want any of his books, even a film novelization, to appear only in paperback, so in August, he persuaded Austin Olney of Houghton Mifflin to publish a hardcover edition, assuring him that the book would sell at least 8000 copies, which it did. However, since the rights to the story were held by Otto Klement, who had co-written the original story treatment, Asimov would not be entitled to any royalties. By the time the hardcover edition was published in March 1966, Houghton Mifflin had persuaded Klement to allow Asimov to have a quarter of the royalties. Klement also negotiated for The Saturday Evening Post to serialize an abridged version of the novel, and he agreed to give Asimov half the payment for it. Fantastic Voyage (abridged to half its length) appeared in the February 26 and March 12, 1966, issues of the Post. Bantam Books released the paperback edition of the novel in September 1966 to coincide with the release of the film. Harry Harrison, reviewing the Asimov novelization, called it a "Jerry-built monstrosity", praising the descriptions of science-fiction events as "Asimov at his best", while condemning the narrative framework as "inane drivel". Later adaptations Related novels and comics The film was adapted into a video game for Atari 2600 in 1982 by Fox Video Games. Fantastic Voyage II: Destination Brain (1987) was written by Isaac Asimov as an attempt to develop and present his own story apart from the 1966 screenplay. This novel is not a sequel to the original, but instead is a separate story taking place in the Soviet Union with an entirely different set of characters. Fantastic Voyage: Microcosm is a third interpretation, written by Kevin J. Anderson, published in 2001. This version has the crew of the Proteus explore the body of a dead alien that crash-lands on earth, and updates the story with such modern concepts as nanotechnology (replacing killer white cells).