What was the colour of Mother's eyes, and so on.

Wendy, you see, had been forgetting, too.
Adventures, of course, as we shall see, were of daily occurrence; but about this time Peter invented, with Wendy's help, a new game that fascinated him enormously, until he suddenly had no more interest in it, which, as you have been told, was what always happened with his games.
It consisted in pretending not to have adventures, in doing the sort of thing John and Michael had been doing all their lives, sitting on stools flinging balls in the air, pushing each other, going out for walks and coming back without having killed so much as a grizzly.

To see Peter doing nothing on a stool was a great sight; he could not help looking solemn at such times, to sit still seemed to him such a comic thing to do.

He boasted that he had gone walking for the good of his health.

For several suns these were the most novel of all adventures to him; and John and Michael had to pretend to be delighted also; otherwise he would have treated them severely.
He often went out alone, and when he came back you were never absolutely certain whether he had had an adventure or not.