Maura: A grindylow shouts back "We did nothing the first, two legs. We were about to attack, sink all their boats. But when we arrived they all gone. Big Queen Brinetooth, she be mad. She plan attack for a whole week."
Kiryu: You are able to see further down the north passage and into the cavern to the east. You can see the now spearless Grindylow along the narrow northern passage. He is the one replying to Maura. You do not see anything in the eastern cave.