BAUM, L. Frank (1856-1919), et al. Trio of First Edition Horror / Science Fiction Novels. [V.p., ca. 1901-1960]. 8vos. Publisher's bindings, two in dust jacket (The Master Key does not appear to have been issued in jacket). FIRST EDITIONS. Titles include: The Master Key an Electrical Fairy Tale by L. Frank Baum; Witch House by Evangeline Walton; Invaders from the Dark by Greye la Spina. 

The Master Key is a science fiction / fantasy novel about a boy who uses electricity to summon a "Daemon," a genie-like figure who grants the boy certain gifts; it was published a year after Baum's first Oz book, The Wonderful Wizard of Oz. Witch House is the first full-length novel published by Arkham House. Invaders from the Dark is la Spina's only hardcover novel, about a love triangle, in which one of the women is a werewolf (one of only two werewolf novels published by Arkham House).

Generally rubbed, soiled, toned, Witch House jacket chipped, worn, toned. Generally good or better.