Callander, Don. Dragon Companion (New York: Ace Books, 1994) 321 p.

Tom Whitehead, a librarian at the Library of Congress, suddenly finds himself one day in a world of dragons and wizards. He is befriended by a dragon and gets a job as Librarian for the local lord, Murdan the Historian. He reorganizes the castle archives. He also impresses everyone with his ability to find information and find non-magical solutions to difficult problems. Tom's adventures continue in Dragon Rescue (New York: Ace, 1995) and Dragon Tempest (New York: Ace, 1998).