She struggled to maintain her outward composure. Panic would get her killed as surely as any gun or knife.

The middle-aged woman standing directly in front of her tossed three pairs of lacy thong panties onto the sales counter with a defiant air.

"I'll take these," she announced, daring Isabella to object.

The customer displayed all of the visible hallmarks of a woman who had just gone through a nasty divorce. Isabella did not need the psychic side of her nature to pick up on the cues: a pale white line where the wedding ring had been, eyes too wide and tight from a recent surgical lift, new haircut, fresh dye job, trendy, tight-fitting clothes. The woman's life had recently crashed and burned.

I know the feeling, Isabella thought. Sort of. The truth was, she had never actually had a real life. Still, for a while during the past six months she had come close, so close, to feeling normal. Face it—you weren't born to be normal.

She managed a polite smile and picked up the panties. "Great buy, aren't they?"

"Yes." The customer was somewhat mollified now that she was assured she wasn't going to be mocked for buying the thongs. "That's why I bought three pairs."

"Good idea. The price will go back up next week after the sale," Isabella said.

She watched the two men in women's sportswear out of the corner of her eye while she rang up the panties. The hair on the back of her neck was standing on end. Goose bumps covered her upper arms. A cold sweat formed between her shoulder blades. Her senses were screaming. Her pulse was pounding. Get out of here. Now.

Viewed in normal light there was nothing to mark the two hunters as anything other than what they appeared to be, bored shopping escorts waiting for their companions to come out of the dressing rooms. But Isabella noticed that customers in their vicinity edged away from them. The two were probably really cranked, preparing to close in on their prey. As a result they were giving off so much energy that even people without any measurable talent sensed the threat on a subliminal level.

"Excuse me, I'm in a hurry here," the woman on the other side of the counter snapped.

"Sorry." Isabella smiled apologetically. "Cash register is a little slow today."

She pushed the credit card slip and a pen across the counter. The woman scrawled her name and grabbed the shopping bag containing the thongs.

Isabella forced herself to smile at the next customer in line, a young mother with a baby in a stroller.

"Can I help you?" Isabella asked. Run.

"I want to buy this." The customer put a pale blue nightgown on the counter and leaned down to pick up the small plush toy the baby had tossed out of the stroller.

"This is such a pretty color," Isabella remarked, falling back on the one day of training the department store had given her at the start of her employment. Always compliment the customer's good taste. She folded the nightgown in the precise way she had been instructed and reached for a sheet of tissue. "Such a beautiful shade of blue."

The woman straightened, brightening immediately.

"Yes," she said. "It's my favorite. Good price, too."

"You were smart to get here early for the sale." Isabella started to wrap some tissue around the nightgown and paused, frowning. "Hmm."

"What's wrong?"

"There's a small spot on this gown," Isabella said.

Alarmed, the woman leaned over the counter. "Where?"

"Right here." Isabella whisked up the nightgown, careful to hold it so that the customer could not see the mythical spot.

"It's the last one in blue in my size," the woman wailed.

"Don't worry, I think I've got one more in the back room, same color and size. I'll only be a moment."

Nightgown in hand, Isabella turned and went quickly toward the discreet door directly behind the counter.

She knew the hunter-talents saw her go through the door into the stockroom, but with luck they would not realize that she had spotted them. Even if they were suspicious, they were unlikely to follow her. One of the clerks would be sure to call Security.

She dropped the nightgown onto a table and started toward the door that opened onto the emergency stairwell. Darlene, one of her coworkers, emerged from between two rows of floor-to-ceiling shelving crammed with boxes of undergarments. She had a stack of lacy bras in her hand.

"Annie, are you okay?" Darlene asked, frowning in concern. "You look like you're not feeling well."

"I'm fine, thanks," Isabella said.

She had used the name and ID of a nonexistent woman named Ann Carstairs to get the job in the department store. There was only one individual on the face of the earth who knew her real name. In the past week she'd been forced to face the possibility that that person, her grandmother, might be dead. If no one knows your real name do you even exist ? she wondered.

That's it, she thought. Stop right there. Negative thinking will get you nowhere. Until it was proven otherwise, she was going to go with the assumption that her grandmother was alive. Meanwhile, her job was to keep herself breathing. That meant avoiding the two hunter-talents.

"You look a little shaky," Darlene said.

"Low on caffeine," Isabella replied. "I'm going on break. Thought I'd use the stairs to the coffee room. I need the exercise."

"Huh." Darlene hurried toward the door to the sales floor. "Seems to me we get plenty of exercise during a sale. My feet are killing me. I'm going to be exhausted by the time we get off work tonight."

"Me, too," Isabella said. "Would you mind taking the blue nightgown out to the counter? There's a customer waiting for it. Tell her there was no spot, after all. Just a trick of the light."

"No problem."

"Thanks."

She waited until Darlene disappeared out onto the sales floor, and then she opened the stairwell door.

More fog swirled on the concrete staircase, but unlike the energy that enveloped the hunter-talents, this stuff glowed with a cold fire. It was the kind of fog she had learned to associate with impending death.

"Oh, crap, not now," she whispered.

She was running for her life. She did not need any distractions.

She started down the stairs, determined to ignore the atmosphere of the stairwell. But there was no ignoring the seething fog cascading down the steps. It was so very cold.

She stopped and looked up. The fog came from the rooftop of the three-story mall, one floor above. The part of her that had been dealing with her talent since her thirteenth year screamed at her to follow the luminous trail. There was something at the top of the emergency stairwell that needed to be found immediately. Time was of the essence.

The thought of getting cornered on the roof by the two hunters held no appeal. But the odds were good that the pair would assume that she would flee down into the mall garage or out onto the street. Going up might be an excellent strategy.

Okay, she was rationalizing. Still, there was a slender thread of logic involved. The bottom line was that she had to find whatever was waiting to be discovered on the mall roof and she had to find it quickly.

The emergency stairwell was a highly efficient echo chamber. The sound of footsteps carried from top to bottom. If the hunters realized that she was not coming back out onto the sales floor, they would surely guess that she had escaped via the emergency stairs. If they decided to risk following her into the stairwell, they would hear her climbing up toward the roof.

She slipped out of her flats, clutched them in one hand, and went quickly up the stairs in her stocking feet. At least she was dressed for flight, she thought. She always wore trousers and flats or boots to work, always dressed to run for her life.

She had been living on the edge for ten days. Lately she had begun to wonder how much longer she could keep up the unrelenting vigilance. The fact that Julian Garrett's men had found her so easily tonight was a sure sign that her life in hiding was taking a toll on her senses. She could not go on like this much longer.

Start thinking like that and you might as well jump off the roof when you get there.

At least it would all be over. If her grandmother was dead, there was no one left who was linked to her by bonds of blood. Ten days ago, she had been forced to sever the workplace friendships she had forged at Lucan Protection Services. Now she was profoundly alone in a way that most people could never imagine. In a world where everyone possessed an identity, she was utterly anonymous. In a very real sense she did not exist.

So why go on?

Rage kicked in, generating heat and energy and another burst of adrenaline. She dashed up the stairwell. She did have something, she thought. She had an enemy. His name was Julian Garrett. She would not let the bastards win so easily.

Always nice to have a goal.

She made it up the final flight of stairs, breathless now, and opened the door. Warily, she stepped outside into the balmy Arizona night. The lights of Phoenix, Scottsdale and the neighboring communities glittered and winked below. A nearly full moon bathed the scene in silver.

The vast expanse of the roof was dotted here and there by the looming shapes of several tons of HVAC equipment. It took a lot of air-conditioning for a mall to survive summer and winter in the desert.

She hesitated, trying to concentrate on the possibilities that might be available if the hunters followed her to the top of the mall. She could see at least three other stairwell entrances that opened onto the roof.