It's plain to be seen that Mrs. Rennie loves Sidney. Even I can see that, and I don't know much about such things. But it puzzles me to know how Sidney regards her. I have never thought he showed any sign of really caring for her. But then, he isn't the kind that would.

"Nic, I wonder if you will ever grow up," he said to me today, laughing, when he caught me racing over the lawn with the dogs.

"I'm grown up now," I said crossly. "Why, I'm eighteen and a half and I'm two inches taller than any of the other girls."

Sidney laughed, as if he were heartily amused at something.

"You're a blessed baby," he said, "and the dearest, truest, jolliest little chum ever a fellow had. I don't know what I'd do without you, Nic. You keep me sane and wholesome. I'm a tenfold better man for knowing you, little girl."

I was rather pleased. It was nice to think I was some good to Sidney.

"Are you going to the Trents' dinner tonight?" I asked.

"Yes," he said briefly.

"Mrs. Rennie will be there," I said.

Sidney nodded.