dead star (resembling a cold neutron star). Having obtained the hostages, Seaton extracts a promise from DuQuesne to "act as one of the party until they get back to Earth", in which relationship they leave orbit and travel further in search of additional fuel. On an Earthlike exoplanet, they obtain "X" from an outcrop almost purely of that mineral; then leave that planet in search of copper. Following an encounter with a "Disembodied Intelligence", they enter a cluster of stars nicknamed “The Green System” and locate a planet having copper sulfate oceans. On the Earth-like "Osnome", they befriend the rulers of Mardonale, one of the two factions of the Osnomian natives. When the Mardonalian ruler attempts to betray Seaton and his friends, they find allies in Prince Dunark (a crown-prince of Mardonale's rival "Kondal") and his consort Princess Sitar, whom they later assist in destroying Mardonale. In gratitude, the Kondalians make new copper "power bars" and rebuild the Skylark as Skylark Two, with new weapons known to Kondalian science. Thereafter Seaton's marriage to Dorothy, and Crane's to Margaret, are solemnized by the Kondalian monarchy, and Seaton himself declared nominal "Overlord" of Kondal. The Skylark then returns to Earth, laden with jewels, platinum, radium, and a plenitude of "X"; but near Earth, DuQuesne leaves the Skylark by parachute, and the story ends with the Skylark'''s landing on Crane's Field. Reception Frederik Pohl says of the book: "With the exception of the works of H. G. Wells, possibly those of Jules Verne—and almost no other writer—it has inspired more imitators and done more to change the nature of all the science fiction written after it than almost any other single work." Mike Ashley called it "the seminal space opera." Despite its influence, its critical reputation is mixed; Groff Conklin's review of the 1950 edition noted that "This tale is the sort of thing that only insatiable fans will enjoy, being . . . uncommonly amateur and awkward", and Isaac Asimov wrote that "It had adventure of an unprecedented kind ... the first great 'classic' of American science fiction", but "As literature, it was a total flop". Damon Knight, however, praised the novel for its "fast, lean plot, an air of excitement, . . . four characters who are comfortingly bigger than life [and] the feeling that adventures are waiting everywhere," concluding that "In The Skylark, everything is big and simple." R. D.