Fitheach Dubh
A darkling (fey being cursed to live in the dark) elder with tattoos on his entire body give off light.
He appreciated the music that Bree and Caius for their performed on the musical rock formations.
From the description, Fitheach identifies the mysterious great dead water beast the adventurers passed as an aboleth.
He also identified the badger temple the party found as being of Segojan Earthcaller.
In parting, Fitheach Dubh gifted Stool's Irregulars with a Rope of climbing.