He had removed my feet off him and laid the book face down near the end of the bed, as he stretched down next to me to get a look at the problem. After one minute of quiet thinking, he had got it.
But hehadgot over it, practising his moves first on boulders from which he could fall five feet onto sand, gradually working higher, until some hundred feet up he could confidently climb with his palms open and relaxed, as calmly as if he was walking to the store.