Emsharnar

Emsharnar is a folktale wanderer. He collects stories and histories from different sea elf tribes and preserves them through retellings and sharing with other tribes. He is a beloved sea elf amongst the tribes - even the the Sea Elf King Vanduil adores him and his work.
He is seemingly the only sea elf that knows about a sea elf warrior who can destroy fleets of pirate ships. He travels with the party to the warriors home, so that the party may free the warriors home of a shadow that looms there and bring the exiled warrior back home.
After The Party defeated a koalinth boss, Emsharnar revealed that he was in fact the warrior, but not only that, he was also a bronze dragon and the father of Thetis.