Thomas Funck's Charlie Posh and Froggie Ball
The bream and the fantastical machine

And now, as the two friends were closing in on the strange shore, they noticed that it was very rocky and full of big stones. It looked like it wouldn’t be easy to step ashore there. But in the middle of all the cliffs and stones Charlie Posh saw, to his astonishment, a hole in the middle of the cliff. It was some sort of cave, and Charlie Posh couldn’t resist steering his boat into it. The boat and the barge went in to the deep darkness. Charlie Posh stopped and tied his boat to the cave wall