Were the books Toby Tyler and The Graveyard Book both made into films?    No
The Graveyard Book The Graveyard Book is a children's fantasy novel by the English author Neil Gaiman, simultaneously published in Britain and America during 2008. "The Graveyard Book" traces the story of the boy Nobody "Bod" Owens who is adopted and raised by the supernatural occupants of a graveyard after his family is brutally murdered.
Nightwing (film) Nightwing is a 1979 American horror film directed by Arthur Hiller. The screenplay by Martin Cruz Smith, Steve Shagan, and Bud Shrake is based on the 1977 novel of the same title by Smith. Its tagline is "Day belongs to man, but night is theirs!" It was one of many "Jaws" rip-offs that were popular in the late 1970s and early 1980s, including "" (1977), "Tentacles" (1977), "The Pack" (1977), "Piranha" (1978), "Alligator" (1980) and "Great White" (1980). It also was Hiller's only horror film.