Which detail supports this theme shared by "kaddo's wall" and "the magic prison"? if you are selfish, you may find yourself alone when you need others the most. "they used wet dough for mortar to hold the bricks together, and slowly the wall grew." "'the corn is mine. it is my surplus. i can't eat it all. it comes from my own fields. i am rich.'" “'you must be hungry, too, poor little thing! ' he said." "the next day he was so hungry that he began to eat one of the old withered apples, and as he bit it he thought of the bird, his fellow prisoner."