Author, Creator, Writer · 39 titles
39 titles
The ThreatenersBook· 1992Author
The FrightenersBook· 1989Author
The AnnihilatorsBook· 1983Author
The DetonatorsBook· 1982Author
The Mona InterceptBook· 1980Author
The TerrorizersBook· 1977Author
Matt HelmSeries· 1975Creator
The IntriguersBook· 1972Author
The PoisonersBook· 1971Author
The MenacersBook· 1968Author
The BetrayersBook· 1966Author
The ShadowersBook· 1964Author
The RavagersBook· 1964Author
The AmbushersBook· 1963Author
The silencersBook· 1962Author
The RemoversBook· 1961Author
Texas FeverBook· 1960Author
Mad RiverBook· 1956Author
Line of FireBook· 1955Author
Night WalkerBook· 1954Author
Smoky ValleyBook· 1954Author