Tom Swift in the City of Gold by Victor Appleton
Tom receives a letter containing a crude map. Jacob Illingway believes it leads to an underground city exists in central Mexico. The ancient city contains untold riches for anyone who can find it and get past the guardians, a tribe of head hunters. Tom and his friends are off to Mexico to fight the head hunters and locate the City of Gold.
Table of Content
Chapter 2 An Unsuspected Listener
Chapter 6 «Beware the Head-Hunters!"
Chapter 9 "That Looked Like Andy!"
Chapter 10 Mysterious Passengers
Chapter 16 The Map on The Gold