Benjiro is silent some time as he watches Mary Ann communicating with the other groups gathered in the tunnels. His brow is knotted in a mixture of thought and worry as more information is revealed about the sharks and involvement of Mr. Evil.

As discussion reaches mention of previous Echoes at the river mouth, Benjiro writes a note to Mary Ann in his notebook to show her.

Let’s go back. I want to check out what is above the big mouse, but I would rather have everyone else out of here when I do. I do not intend to wake it, but if I accidentally disturb it, then it could be dangerous.