The Terror of Atlcalli

From publisher blurb: There are many tales told by the peoples of the Hollow Earth of statues which walk and act like man. Most of these tales are either simple misunderstandings or downright falsehoods designed to scare children or keep fearful populations in check... ...Every once in a while, however, one of these stories turns out to be true, more or less. Such is the tale of the Terror of Atlcalli.