Memoir of an Eventful Expedition in Central America / Resulting in the Discovery of the Idolatrous City of Iximaya, in an Unexplored Region; and the Possession of two Remarkable Aztec Children, Descendants and Specimens of the Sacerdotal Caste, (now nearly extinct,) of the Ancient Aztec Founders of the Ruined Temples of that Country, Described by John L. Stevens, Esq., and Other Travellers.

A translated memoir recounts a mid-19th-century expedition into an unexplored Central American sierra that claims the discovery of a large, isolated indigenous city preserving pre-conquest customs, monumental ruins, and a surviving sacerdotal caste. The narrative blends travel episodes, archaeological description of temples and inscriptions, ethnographic sketches and illustrated profiles, and sensational anecdotes such as the exhibition and baptism of two children attributed to the ancient priesthood. It records preparations and hazards of the journey, comparisons with known ruins, local informants' reports, and reflections on the potential for solving archaeological mysteries, alternating documentary detail with speculative interpretation.