"I thought you said he used your birthday at one point."

"True. That'd be 5-15-1955."

"Hey, mine's 5-5-1950," I chirped, sounding like a lunatic.

"Great. We'll do a joint celebration when the dates roll around next year. So what should I try? His birth date backwards or mine straight ahead?"

"Well, his birth date backwards has an internal logic if you group the numbers. 949-191-4. Would he break it down that way?"

"Might."

"Just do one or the other before I have a heart attack."

She punched in 5-15-1955. A moment of silence and then the doors slid open. "My birthday. Sweet. You think he still cares?"

I pushed the Stop Run button and watched her wipe her prints off the keypad, taking care not to trigger the alarm. "Wouldn't want anyone to know we were here," she said, happily.

Meanwhile, I was staring straight ahead. The room was probably six feet by eight – not much bigger than a closet. The cleaning cart we'd seen was shoved up against the left wall. A U-shaped counter took up much of the remaining floor space. I looked up. The room seemed to be well ventilated, the walls heavily padded. A smoke detector and a heat detector had been installed in the shadowy upper reaches of the ceiling, where I could see sprinkler heads as well. Rungs embedded in the wall formed a ladder that went straight up. Around the perimeter of the ceiling, I could see rectangles of daylight roughly corresponding to the vents in the fake gardener's cottage on the roof. Reba was right. In a pinch, you could probably gain entry to the room from the roof. Or escape that way.

There were three currency-counting machines on one arm of the counter and four currency-bundling machines on the adjacent counter. Open suitcases were lined up on the third section, packed with tightly wrapped bundles of hundred-dollar bills. Under the counter, ten cardboard cartons were lined up, their top flaps open, packed with additional bundles of hundreds, fifties, and twenties in U.S. currency. Each bundle was shrink-wrapped, with paper adding-machine tape circling packets of five. There were two styrofoam coffee cups visible and a pile of empty cups in a wastebasket, which also contained wads of discarded plastic wrappers. Several silver-dollar-size plastic disks with small blades were being used to slit the wrappers.

Reba said, "Geez. I've never seen so much money."

"Me neither. It looks like they're pulling bundles from these boxes, removing the wrappers, running the bills through the currency counter, and then re wrapping them for transport."

She advanced a few steps and checked the total on one of the currency counters. "Take a peek at this puppy. They've run a million bucks through this." She picked up a bundle and weighed it in her hand. "Wonder how much this is. Wouldn't you love to know?" She sniffed it. "You'd think it would smell good, but it doesn't smell like anything."