Martin Luther helped teach Peter that. Peter discovered Martin Luther, a shivering gray midget, in the cold dusk of a November evening, on the Riverton Road. The little beast rubbed against his legs, stuck up a ridiculous tail, and mewed hopefully. Peter, who needed friendliness himself, was unable to resist that appeal. He buttoned the forlorn kitten inside his old jacket, and, feeling the grateful warmth of his body, it cuddled and purred. The wise little cat didn't care the tip of a mouse's tail whether or not Peter was the congenital dunce his teacher had declared him to be, only that morning. The kitten knew he was just the sort of boy to show compassion to lost kittens, and trusted and loved him at sight.
His mother was doubtful as to the wisdom of adopting a third member into a family which could barely feed two without one going half hungry. Also, she disliked cats intensely. She was most horribly afraid of cats. She was just about to say that he'd have to give the kitten to somebody better able to care for it, but seeing the resigned and hopeless expression that crept into Peter's face, she said, instead, that she reckoned they could manage to feed the little wretch, provided he kept it out of her room. Peter joyfully agreed, washed the cat in his own basin, fed it with a part of his own supper, and took it to bed with him, where it purred itself to sleep. Thus came Martin Luther to the house of Champneys.
When Peter had chores to do the cat scampered about him with, sidewise leapings and gambolings, and made his labor easier by seasoning it with harmless amusement. When he wrestled with his lessons Martin Luther sat sedately on the table and watched him, every now and then rubbing a sympathetic head against him. When he woke up at night in the shed room, he liked to put out his hand and touch the warm, soft, silky body near him. Peter adored his cat, which was to him a friend.
And then Martin Luther took to disappearing, mysteriously, for longer and longer intervals. Peter was filled with apprehensions, for Martin Luther wasn't a democratic soul; aside from his affection for Peter, the cat was as wild as a panther. The child was almost sick with anxiety. He wandered around Riverton hunting for the beast and calling it by name, a proceeding which further convinced Riverton folk that poor Maria Champneys's boy was not what one might call bright. Fancy carrying on like that about nothing but a cat! But Peter used to lie awake at night, lonesomely, and cry because he was afraid some evil had befallen the perverse creature of his affections. Then he prayed that God would look out for Martin Luther, if He hadn't already remembered to do so. The world of a sudden seemed a very big, sad, unfriendly place for a little boy to live in, when he couldn't even have a cat in it!