Black smoke billowed from the roof vents. At any second, the flames would burst through, adding their heat to the already shimmering summer sky. Wood shingle, Clare Chance thought in disgust, a four-story Houston firetrap. She drew a breath of thick humidity and prepared for that walk on the edge . . . where fire enticed with unearthly beauty, even as it destroyed.

Fellow firefighter Frank Wallace, over forty, but fighting trim, gripped her shoulder. "Back me up on the hose." Although he squinted against the midday glare, his mustachioed grin showed his irrepressible enthusiasm.

"Right behind you," Clare agreed. In full turnouts and an air pack, she ignored the sultry heat and the wail of sirens as more alarms were called. Helping Frank drag the hose between gawking by-standers and shocked apartment residents, she reflected that the toughest part of the job was watching lives inexorably changed.

A commotion broke out as a young Asian woman, reed thin in torn jeans, made a break from the two civilians holding her. She dashed toward the nearest building entry crying, "My baby!"

* * *

At the third floor and starting blindly toward four, Clare felt the smoke grow hotter. She crouched below the deadly heat and told herself that she could breathe. Positive pressure prevented fumes from leaking into her mask, and the dehydrated air cooled as it decompressed.

In, out, slow . . .

Isolation pressed in with the superheated atmosphere. She couldn’t shake the feeling that Frank had left her, belied by his tugging on the hose. At times like these, she had to keep her head on straight. No giving in to claustrophobia and no thought of turning back.

If you misguessed the dragon in the darkness, you would pay with your life.

Fourth floor hall, and Clare went onto hands and knees. Darkness and disorientation complete, she concentrated on keeping the hose in line and her breathing steady. The worst humiliation was if she sucked her tank dry and had to make an ignominious exit.

Ahead, Frank cracked the nozzle for a bare second. Heat slammed down as the spray upset the thermocline. He hit the valve again. A glimpse of not quite midnight winked from the shadows, now there and then gone. Clare ground her teeth and her chest tightened as they approached 4-G.

The door stood ajar. A good omen, she hoped, as she and Frank accepted its invitation and crawled inside.

Drapes and couches blazed, giving off toxic gases that made her glad for filtered air. The ceiling sheetrock was burned away, revealing the space beneath the roof where storage boxes blazed. Did they contain old clothes and junk, or precious family heirlooms from Southeast Asia, belonging to the young woman who waited below?

A thousand degrees from above drove Clare and Frank onto their stomachs. While hot water rained onto shag carpet, she inched along, one gloved hand feeling the way and the other on the hose. If you let go of your lifeline, you could lose orientation, the sure first step to a mayday situation.

Through the drop-spattered mask, there was no sign of life in the living room and nothing that looked like a crib or playpen. Clare looked toward a door that must lead to a bedroom, but flames licked at the frame and walls. No haven there. Sick with the possibility of failure, she dragged herself toward Frank. She had not yet told a mother that her child had died in a fire.

If hell existed, this must be its antechamber. Frank lay ahead of her, directing the hose. By the tugs, she felt him move forward, risking the dragon backing around and coming down with searing breath. Clare found herself staring at the constantly changing colors of combustion, unable to resist the inferno’s splendor. Her love-hate relationship with fire hurt most at times like these.

An ominous rumble began, the vibration resonating in her chest as though the dragon cleared its throat. Cold horror cut the heat.

Through the steam cloud from the power cone, she caught a shifting in the rafters, a barely perceptible sideways slide. She couldn’t grab Frank’s collar to warn him, couldn’t do a thing except scream his name into the maelstrom.

One moment, Clare was crawling toward him. The next, he disappeared in a shower of light.