''The Jungle Pyramid'' is Volume 56 in the original

Hardy Boys The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in a series of mystery novels for young readers. The series revolves around teenage amateur sleuths, solving cases that often stumped their adult counterparts. ...

series of mystery books for children and teens published by

Grosset & Dunlap Grosset & Dunlap is a New York City-based publishing house founded in 1898. The company was purchased by G. P. Putnam's Sons in 1982 and today is part of Penguin Random House through its subsidiary Penguin Group. In recent years, through the P ...

. Written by Vincent Buranelli for the

Stratemeyer Syndicate The Stratemeyer Syndicate was an American publishing company that produced a number of mystery book series for children, including Nancy Drew, The Hardy Boys, the various Tom Swift series, the Bobbsey Twins, the Rover Boys, and others. It pu ...

in 1977, it was published under the pseudonym Franklin W. Dixon.

Plot summary

Somebody steals gold from the Wakefield Mint without even triggering the alarm. The Hardy Boys must track the gold down. Then the Early Art Museum is robbed of a gold artifact. Their main suspect is a man named Pedro Zemog, who ran out of the museum after the alarm was triggered. A strange note with Zemog's name on it sends them to

Zurich Zurich (; ) is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zurich. It is in north-central Switzerland, at the northwestern tip of Lake Zurich. , the municipality had 448,664 inhabitants. The ...

, where somebody claims to know about the Wakefield gold theft. Then another note with Zemog's name on it sends the boys to

Mexico City Mexico City is the capital city, capital and List of cities in Mexico, largest city of Mexico, as well as the List of North American cities by population, most populous city in North America. It is one of the most important cultural and finan ...

, where they discover a pyramid in the jungle. In the pyramid are many gold coins and sculptures. Afterward, the boys discover the gang's hideout and thwart the gang with their father Fenton's help.

References

The Hardy Boys books 1977 American novels 1977 children's books Novels set in Mexico Grosset & Dunlap books {{1970s-ya-novel-stub