Win Scott Eckert literary merging between novels, a crossover between multiple works, linking standout fictional characters into a deliberate family and coherent chronology. Farmer's two fictional "biographies" of the fictional characters Tarzan ("Tarzan Alive") and Clark Savage, Jr. ("") proposed that actual meteorite which landed in Wold Newton, Yorkshire, England, on December 13, 1795 caused a genetic mutation in the occupants of a passing coach. Their (fictional) descendants, therefore, became the stalwarts of fantastic fiction. Farmer's initial family trees include such luminaries (and their ancestors and descendants) as Sherlock Holmes, Lord Greystoke, A.J. Raffles, (Conan Doyle's) Professor Challenger, Sir Percy Blakeney, (Poe's) C.
Black Knight (Sir Percy) Sir Percy was survived by a son, Geoffrey. Lady Rosamund later gave birth to his second son, Edward the Posthumous, who reportedly became ancestor of "a proud lineage". Several of Sir Percy's descendants adopted the identity of the Black Knight: Sir Raston, active during the late 6th and early 7th century, who eventually became an agent of the time traveler Kang the Conqueror; and Sir Eobar Garrington, a 12th-century knight serving under Richard the Lionheart during the Third Crusade. Percy's spirit has appeared several times to counsel his descendant, Dane Whitman. He first appeared as a ghost to act as