Taking the right fork Cordey, Regan, and Admiral proceed down another tunnel lined with sea plants. A smell of low tide gets stronger as they move. The walls are lines with algae, but at least these don't seems actively aggressive in any noticeable way. Soon they come to the hag's bed chamber, as the imp revealed.
In the chamber, oddly, there is a large octopus--out of water--that lifts its eyes when the party enters, as if the creature was in a sound sleep and they startled it. It lays in front of a bed that is covered in messy sheets made of seaweed with a seaweed curtain for its headboard. There's a small rock pool near the octopus and an ugly small statue, possibly of a hag.
A large mirror balanced in an ornate stand is near the bed. From it a ray of white light shines across the room.
Behind the mirror it looks like there's another area around a bend of rocks.