The girl now sat up， really interested at last. They stared very hard at one another， trying to remember. And then， at exactly the same moment， she shouted out， “Mr Ketterley”， and he shouted out， “Uncle Andrew” ， and they knew who they were and began to remember the whole story. After a few minutes’ hard talking they had got it straight. Digory explained how beastly Uncle Andrew had been.
“What do we do now？” said Polly. “Take the guinea.pig and go home？”
“There‘s no hurry，” said Digory， with a huge yawn.
“I think there is，” said Polly. “This place is too quiet. It’s so.so dreamy. You‘re almost asleep. If we once give in to it we shall just lie down and drowse for ever and ever.”
“It’s very nice here，” said Digory.
“Yes， it is，” said Polly. “But we‘ve got to get back.” She stood up and began to go cautiously towards the guinea.pig. But then she changed her mind.
“We might as well leave the guinea.pig，” she said. “It’s perfectly happy here， and your uncle will only do something horrid to it if we take it home.”
“I bet he would，” answered Digory. “Look at the way he‘s treated us. By the way， how do we get home？”
“Go back into the pool， I expect.”