It was Harry Corwin's idea to stay in the pool overnight and everyone instantly applauded it.
Later, a party went ashore and explored, but there were no paths to be found and Nature was jealous of her secrets and they came back without more knowledge of this unknown island than they had had before.

They named it Mystery Island and called the little harbour Titania's Mirror, a suggestion from Bert Alley which elicited jibes and a final agreement.
"It's not 'mushy' a bit," said Steve, in Bert's defence.

"It's a fine name for the prettiest bit of water any of us ever saw, and you know it.
The only trouble with you is that you're afraid someone will laugh at you for being poetical or imaginative.

If Bert had suggested calling it Put-In Bay or Simpkins' Cove or something like that you'd have said 'Fine!' and secretly thought him a perfect ass!" Twilight came early and the still, limpid water of the pool took on all sorts of strange and wonderful hues, like the iridescent surface of a pearl-shell.

It grew very still and a little bit eery as the shadows crept over the scene, and it was a relief when Cas Temple and Bert Alley brought forth their mandolins.