From the introduction:
The Caves of Chisca is an introductory adventure for use with Northern Crown: New World Adventures and Northern Crown: The Gazetteer, published by Atlas Games. It is designed to be a very challenging experience for a party of four 1st-level PCs or a moderately difficult adventure for 2nd-level PCs.
From the synopsis:
The Yuchi town of Chisca, nestled in a mountain vale deep in Cherokee territory, is attacked by
haints issuing from the nearby caves. Something has stirred these monstrous humanoids, but the cause is in dispute. Some say that treasure hunters, searching in vain for a golden relic of a Uropan priest, have inadvertently roused the haints, who may be the ruined remnants of a century-old expeditionary force of mercenaries led by a notorious plunderer. Others say that the mercenary captainʼs spirit has awoken after a century-long sleep, and is sending forth his followers to exact revenge upon the town that resisted his brutal search for gold and led to the destruction of his company.
In this adventure module, the PCs will piece together the history of the area from interactions with a young Yuchi cleric and a Kelt innkeeper. They will battle both the haints and a sinister Vandalian agent as they explore the caves, seeking to solve the mystery of these attacks. A final confrontation with the ancient mercenary captain himself, another surprise villain, and with
the agent who allowed him to rise and renew his campaign of terror, caps the story and points to
further opportunities for adventure.