'Can't curl, but can swim—
Slow-Solid, that's him!
Curls up, but can't swim—
Stickly-Prickly, that's him!'

'He'll never forget that this month of Sundays,' said Stickly-Prickly. 'Hold up my chin, Slow-and-Solid. I'm going to try to learn to swim. It may be useful.'

'Excellent!' said Slow-and-Solid; and he held up Stickly-Prickly's chin, while Stickly-Prickly kicked in the waters of the turbid Amazon.

'You'll make a fine swimmer yet,' said Slow-and-Solid. 'Now, if you can unlace my back-plates a little, I'll see what I can do towards curling up. It may be useful.'

Stickly-Prickly helped to unlace Tortoise's back-plates, so that by twisting and straining Slow-and-Solid actually managed to curl up a tiddy wee bit.

'Excellent!' said Stickly-Prickly; 'but I shouldn't do any more just now. It's making you black in the face. Kindly lead me into the water once again and I'll practise that side-stroke which you say is so easy.' And so Stickly-Prickly practised, and Slow-Solid swam alongside.

'Excellent!' said Slow-and-Solid. 'A little more practice will make you a regular whale. Now, if I may trouble you to unlace my back and front plates two holes more, I'll try that fascinating bend that you say is so easy. Won't Painted Jaguar be surprised!'

'Excellent!' said Stickly-Prickly, all wet from the turbid Amazon. 'I declare, I shouldn't know you from one of my own family. Two holes, I think, you said? A little more expression, please, and don't grunt quite so much, or Painted Jaguar may hear us. When you've finished, I want to try that long dive which you say is so easy. Won't Painted Jaguar be surprised!'

And so Stickly-Prickly dived, and Slow-and-Solid dived alongside.