Dr. Vincent Potter was a large man with a shining expanse of flesh between two islands of black, bristling hair above heavy brows that met over his nose and almost concealed the bright, intelligent eyes that glittered beneath them.

"So. You cannot understand. Yes." He nodded his head, made a tent with his hands, and rocked. "But this is what we are for. To understand. For you." He smiled. "If understanding easily came, then we would be not needed. No? You see?" He laughed a little, jerked upright. The movement nearly made the three of them jump.

"Doctor," George said. "There are millions of kids in Elrooms all over the country."

"You tell me something new?" The doctor frowned. "Millions of people there are. So? Must they be alike every one? They are not. Yes?" The doctor leaned toward Timmy who was playing with a desk calendar. "Who is your mother?" Timmy pointed to Mrs. Briggs. "Your father?" Timmy pointed to George. "See? He knows."

"Of course," Mrs. Briggs said.

"Exactly," the doctor agreed. Then he was upright, waving his forefinger before them, looking from beneath dark brows. "For how long, Mrs. Briggs? For how long, I am asking? And now, I am telling how long. Who knows? Who can tell how many times you will let him see these things?"

"What day is today?" Timmy asked.

"He is asking what day it is," the doctor laughed.

"Well, why don't you answer him?" Mrs. Briggs suggested.