Secrets of Roderic's Cove

From the introduction:

The Return of the Runelords Adventure Path begins here, in the pine-shaded port town of Roderic's Cove. Grudges and gossip are ever present in small town life, and Roderic's Cove is no different. The town has seen its share of troubles in the past with Riddleport pirates and a haunting by the town's founder, and now those tensions are bubbling up again. After a deadly brawl breaks out, the heroes must piece together what troubles the small town. Along the way, they stumble upon something larger than faction squabbles among the townsfolk — an ancient smoldering threat has flared to life. The powerful ancient wizards who once ruled this land are returning!