Charlie and Etherton are introduced to Lord Kingsborough, a scholar who believes the Mayans descended from a lost tribe of Israel. He reveals an unpublished volume of Mayan writings that hint at the location of artefacts to support his theory.
Seamus Quinlan, a notorious London gang leader and family acquaintance, tasks the duo with finding the treasure and bringing it to England. Their adventure leads them through the Yucatan in search of lost Mayan ruins, where they must battle bandits and outwit Freddy, Lord Kingsborough’s cunning cousin, who wants the treasure for himself.
The relentless chase takes them first into the darkest depths of the Honduran jungle, and then on to New York, where they get caught in a brutal gang war between the Mafia and the Germans. Can Charlie and Etherton stay clear of trouble and keep hold of their treasure?
Set in a world based in an alternate history, where engineering took a left turn and stayed in the age of steam, this steampunk adventure is packed with daring exploits, dangerous enemies, and captivating intrigue.