In this masterpiece of fear and suspense, Rufus King tackles the dangerous subjects of love and atomic energy. The resulting romantic riddle is a brain-teaser guaranteed to stymie detective fans until the very last page. Ramier Bellamy kisses Drusilla Duveen good-bye and prepares to make himself invisible. But something goes wrong with his experiment -- and when the machine he invented started to hum, it is Drusilla, not he, who vanishes! That's just the first in a series of mysterious events that will keep you guessing -- and wondering!

When it comes to love, sometimes you have to cross the line... Feared by mortals for his inexorable power, and loathed by his fellow Greek gods for the same, Hades rules the Underworld alone. A stark eternity looms before him until he discovers Persephone. Struck by the youthful goddess' beauty, kindness, and spirit, he must have her. But Hades believes Persephone could never love him, and so he conspires with his powerful brother, Zeus, to take her by force. Persephone too seeks a mate but her possessive mother, the goddess Demeter, frustrates her husband hunting. Then Hades abducts Persephone, tearing her away from the Upperworld she loves to reign with him in the dank depths below. Though outraged, Persephone cannot deny the desire ignited within her by the dark lord's touch. And even as she hopes that Demeter will unearth her, Persephone aches to surrender to the heat in Hades' immortal soul.

Lt. Valcour did not object to interrupting his vacation in order to help Chief Goodfriend of the Miami detective force solve the oddly similar murders of two distinctly dissimilar women. For one thing, the cases, or case as Valcour felt it to be, interested him and he felt a distinct apprehension that unless somebody solved it there would be more deaths to come. And Goodfriend appeared in desperate need of assistance. Consequently Valcour felt as though he were conducting a demonstration course in detection when he set about finding all available information on the women... A tense mystery-thriller as only Rufus King could write it!

The strangling of a wealthy woman at an opulent Andirondack estate brings Lt. Valcour to investigate. He knows immediately who committed the crime, but can he prove it? "Good yarn. Valcour has a hard time getting evidence against a peculiarly successful criminal, though he spots the guilty one at the start." -- Kirkus "Designedly transparent as mystery, but suspense keeps up to concert pitch all the way." -- The Saturday Review

When a wealthy New Yorker with a young bride is shot in his Manhattan mansion, then a blackmailing valet perishes in Easthampton, only Lt. Valcour can unravel the mystery. "A clever solution...[the] tale has more than usual amount of chipper chatter." -- The Saturday Review

Disaster at sea! When the yacht "Helsinor" strikes a reef in the Lesser Antilles, the passengers take to a lifeboat. Upon their return to the United States, accusations fly. Did one of the survivors drug the others and pitch the millionaire owner of the yacht, Lawrence Thacker, into shark-infested waters? Lt. Valcour begins an informal investigation. When one of the heirs to the Thacker millions is poisoned, Valcour's investigation becomes official. Of course, the logical thing to do is to gather the survivors aboard the "Helsinor II" and return to the scene of the original wreck... The Lesser Antilles Case is is the 7th Lt. Valcour novel.

A blackmailer with religious mania and a decayed actor are murdered -- one by land and one by sea. Despite the challenges, Lt. Valcour is not daunted by his latest case! "The thrills and polished deducing are there in quantity." -- The Saturday Review.

This was the first bibliography and guide to the American mass market paperback book, and it remains one of the most definitive. The major index is by author, and lists: author, title, publisher, book number, year of publication, and cover price. The title index lists titles and authors only. The publisher index provides a history of that imprint, with addresses, number ranges, and general physical description of the books issued. This is the place that all study of the American paperback must begin.

Science Fiction and Fantasy Literature, A Checklist, 1700-1974, Volume one of Two, contains an Author Index, Title Index, Series Index, Awards Index, and the Ace and Belmont Doubles Index.