Iziquial

Iziquial, was an archaeologist introduced early on in the campaign when Adrasteia went to visit the Temple of Artemis in Artemis Cove and found him trying to convince a priest there to aid in his research. He explains that his research indicates that there was a whole other civilisation present in the area a long, long time ago that was then wiped out, leading to the strange geographical shape of Imperum Crescent. He suspects that this was done by the Goddess Artemis.
Though the party never aids him in taking an expedition into the bay of Artemis Cove to find his lost civilisation, they do later find out that he is most likely correct, as they find evidence that Imperum Crescent was once the Kingdom known as Arcadia ruled over by King Lykaon. This is also discovered by Adrasteia's interactions with the Ring of King Lykaon, an artefact Iziquial found, and it's relation to the now resurrected werewolf king.
Eventually after hinting many times that he is worried he is being watched and that The Owl and Spear have shown an interest in him, Iziquial suddenly went missing and the party are yet to find a single clue of what truly happened to him, not that they have really been trying to anyway.