Jeremy and his father put on knee-length woolen tunics. Jeremy's was undyed, his father's a dull blue. Both tunics had embroidery around the sleeves and the neck opening, Dad's more than Jeremy's. Jeremy's socks were also of wool, hand-knitted; his sandals were leather, with bronze buckles. His underwear came down to his knees. It was wool, too. It itched. A plain floppy felt hat finished his outfit. Dad's hat boasted a braided leather band and a bright pheasant feather sticking up from it.

Mom and Amanda wore tunics that fell all the way to their ankles. Amanda's was blue like Dad's. Mom's was saffron yellow, which showed the family had money. So did her shiny brass belt, the gold hoops in her ears, and her lace headdress. Amanda wore a brass belt, too, but not such a wide one. Her headdress was lower and flatter than Mom's. That meant she wasn't married.

A computer guided the transposition chamber. An operator sat in the chamber with the travelers. He didn't change, and looked like the odd man out. He had manual controls in case of emergency. Fortunately, emergencies were rare. Emergencies where the manual controls would do any good were even rarer. Jeremy chose not to dwell on that.

He tried to tell when the chamber reached the right alternate. He tried whenever he went crosstime, and he always failed. If he'd been waiting for the chamber, he would have seen it materialize. Inside it, he might as well not have left the home timeline.

The trip to the alternate seemed to take about forty-five minutes. When he got out and looked at the sun, though, it would be in the same place in the sky here as it had in the home line. Duration across timelines was a tricky business. Quantum physics seemed simple beside it.

Out of the blue-or so it felt to Jeremy-the operator said, “Okay, you're here.” Jeremy muttered to himself. Caught by surprise again.