friend Bradbury, so that she could leave to work on the screenplay of The Big Sleep. Brackett returned to science fiction writing in 1948 after her movie work. Between 1948 and 1951, she produced a series of science fiction adventure stories that were longer than her previous work, including classic representations of her planetary settings as "The Moon that Vanished" and the novel Sea-Kings of Mars (1949). The latter was later published as The Sword of Rhiannon. In "Queen of the Martian Catacombs" (1949), Brackett created the character of Eric John Stark. Stark, an orphan from Earth, is raised by the semi-sentient aboriginals of Mercury, who are later killed by Earthmen. He is saved by a Terran official, who adopts and mentors Stark. When threatened, Stark reverts to the primitive N'Chaka, the "man without a tribe", who he was on Mercury. From 1949 to 1951, Brackett featured Stark (whose name echoes that of the hero in "Lorelei of the Red Mist") in three stories published in Planet Stories: "Queen of the Martian Catacombs", "Enchantress of Venus", and "Black Amazon of Mars". With this last story, Brackett's high adventure period ended. Brackett adopted an elegiac tone in her stories, no longer celebrating the conflicts of frontier worlds but lamenting the passing of civilizations, and concentrating more on mood than plot. The stories' reflective, introspective nature is indicated in the titles: "The Last Days of Shandakor", "Shannach—the Last", and "Last Call from Sector 9G". "Last Call" was published in the final issue (Summer 1955) of Planet Stories, which had been her most reliable publisher. After Planet Stories folded, and then Startling Stories and Thrilling Wonder Stories, Brackett lost her magazine market. The first phase of her career as a science fiction author ended. She produced other stories over the next decade, and revised and published some as novels. A new production of this period was The Long Tomorrow (1955), one of Brackett's more critically acclaimed novels. It describes an agrarian, technophobic society that develops after a nuclear war. After 1955, Brackett concentrated on writing for the more lucrative film and television markets. In 1963 and 1964, she briefly returned to her old Martian milieu with a pair of stories. "The Road to Sinharat" was an affectionate farewell to the world of "Queen of the Martian Catacombs", and the other, with the intentionally ridiculous title of "Purple Priestess of the Mad Moon", borders