This is a reprint of the Apocryphal 'Book of Enoch of the Prophet' which was first discovered in Abysinnia in the year 1773 by a Scottish explorer named James Bruce. In 1821 The Book of Enoch was translated by Richard Laurence and published in a number of successive editions, culminating in the 1883 edition.

First published in 1925, Mystery Cities of the Maya is a classic in Central American archaeology-adventure. Gann was close friends with Mike Mitchell-Hedges, the British adventurer who discovered the famous crystal skull with his adopted daughter Sammy and Lady Richmond Brown, their benefactress. Gann battles pirates along Belize's coast and goes upriver with Mitchell-Hedges to the site of Lubaantun where they excavate a strange lost city where the crystal skull was discovered. Lubaantun is a unique city in the Mayan world as it is built out of precisely carved blocks of stone without the usual plaster-cement facing