Eaters of the Dead: The Manuscript of Ibn Fadlan Relating His Experiences with the Northmen in AD 922 (later republished as The 13th Warrior to correspond with the film adaptation of the novel) is a 1976 novel by Michael Crichton, the fourth novel under his own name and his 14th overall.

The first three chapters are a retelling of Ahmad ibn Fadlan's personal account of his actual journey north and his experiences with and observations of Varangians.

The Caliph of Baghdad, Al-Muqtadir, sends his ambassador, Ahmad ibn Fadlan, on a mission to assist the king of the Volga Bulgars.

They travel to Hurot Hall, the home of King Hrothgar, to defend it from the 'mist-monsters', or 'wendol', a tribe of vicious savages (suggested by the narrator to have been possibly relict Neanderthals) who go to battle wearing bearskins.

After two devastating battles, Ibn Fadlan and the remaining Northmen decide to attack the Wendol village, which is located in a network of sea caves.

A sense of authenticity is supported by occasional explanatory footnotes with references to a mixture of factual and fictitious sources.