Pavvaal Borsk is a Paladin and known fanatic who believed he had received a message from the fallen God Lathander to travel to his temple in Leilon, where he'd find evidence that Lathander still existed and was not actually Amaunator, or an aspect of Amaunator.
Borsk is a fanatical believer that the risen sun heresy was true heresy. And the popular belief that Lathander was destroyed or revealed to be an aspect of the returned Amaunator is false.
Rumor: Lathander Lives in the Ruins of Leilon?