You don't seem to understand," I whispered. "It's Christmas relationships that are worrying Carol and me so! It worries us dreadfully! Oh, of course we understand all about the Little Baby Christ! And the camels! And the wise men! And the frankincense! That's easy! But who is Santa Claus? Unless—unless—?" It was Carol himself who signaled me to go on. "Unless—he's the Baby Christ's grandfather?" I thought Derry Willard looked a little bit startled. Carol's ears turned bright red. "Oh, of course—we meant on his mother's side!" I hastened to assure him.