She knew he was having a hard time matching the two. In hand, her museum identification card portrayed a studious thirty-year-old woman of coffee-and-cream complexion, ebony hair tied back in an efficient braid, green eyes hidden behind black reading glasses. In contrast, before the young guard stood a soaking, bedraggled woman, hair loosely plastered in long swaths to her face. Her eyes felt lost and confused, focused beyond the barriers, beyond the frenzy of emergency personnel and equipment.

News crews dotted the landscape, haloed by the spots from their cameras. A few television trucks stood parked half up on the sidewalks. She also spotted two British military vehicles among the emergency crews, along with personnel bearing rifles.

The possibility of a terrorist attack could not be dismissed. She had heard such rumblings among the crowd and from a reporter she had to sidestep to reach the barricade. And not a few cast suspicious glances in her direction, the lone Arab on the street. She’d had firsthand experience with terrorism, but not in the manner these folks suspected. And maybe she was even misinterpreting the reactions around her. A form of paranoia, what was termed hyperanxiety, was a common sequela to a panic attack.

Safia continued through the crowd, breathing deeply, focusing on her purpose here. She regretted forgetting her umbrella. She had left her flat immediately after getting the call, delaying only long enough to pull on a pair of khaki slacks and a white floral blouse. She had donned a knee-length Burberry coat, but in her hurry, the matching umbrella had been left in its stand by the door. Only when she reached the first floor of her building and rushed into the rain did she realize her mistake. Anxiety kept her from climbing back up to the fourth floor to retrieve it.

She had to know what had happened at the museum. She’d spent the past decade building the collection, and the past four years running her research projects out of the museum. How much had been ruined? What could be salvaged?

Outside, the rain kicked up again to a steady downpour, but at least the night skies were less angry. By the time she reached the makeshift security checkpoint that cordoned off access, she had been soaked to the bone.

She shivered as the guard satisfied himself with her identification.

“You’re clear to proceed. Inspector Samuelson is awaiting you.”

Another policeman escorted her to the southern entrance of the museum. She stared up at its pillared facade. It had the solidness of a bank vault, a permanence that could not be doubted.

Until this night…

She was ushered through the entrance and down a series of stairs. They passed through doors markedMUSEUM STAFF ONLY She knew where she was being taken. To the subterranean security suite.

An armed guard stood watch at the door. He nodded at their approach, clearly expecting them. He pulled the door open.

Her escort passed her on to a new fellow: a black man dressed in civilian clothes, an undistinguished blue suit. He stood a few inches taller than Safia, hair gone completely gray. His face looked like well-worn leather. She noticed a gray shadow of stubble across his cheeks, un-shaven, called from his bed most likely.

He held out a hard hand. “Inspector Geoffrey Samuelson,” he said as firmly as his handshake. “Thank you for coming so quickly.”

She nodded, too nervous to speak.

“If you’ll follow me, Dr. al-Maaz, we need your assistance in investigating the cause of the explosion.”

“Me?” she managed to force out. She passed a break room, crowded with security staff. It appeared the entire staff, all shifts, had been summoned. She recognized several of the men and women, but they stared at her now as if she were a stranger. The murmur of their chatter fell silent as she passed. They must have known she had been called in, but they didn’t seem to know the reason any more than she did. Still, suspicion was plain behind the silence.

She held her back straighter, irritation sparking through her anxiety. These were her coworkers, colleagues. Then again, they were all too aware of her past.

Her shoulders slumped as the inspector led her down the hall to the farthest room. She knew it housed the “nest,” as it was nicknamed by the staff, an oval-shaped room whose walls were completely covered with video-surveillance monitors. Inside, she found the room almost deserted.

She spotted the head of security, Ryan Fleming, a short but stout man of middle years. He was easily distinguished by his entirely hairless pate and beaked nose, earning him the nickname the “Bald Eagle.” He stood beside a lanky man wearing a crisp military uniform, including a sidearm. The pair leaned over the shoulders of a technician who was seated at a bank of monitors. The group glanced over to her as she entered.

“Dr. Safia al-Maaz, curator of the Kensington Gallery,” Fleming said as introduction. Straightening, he waved her over.

Fleming had been on staff since before Safia had assumed her position. A guard at the time, he had worked his way through the ranks to become chief of security. Four years ago, he had foiled the theft of a pre-Islamic sculpture from her gallery. It was this diligence that had won him his current position. The Kensingtons knew how to reward those who had done right by them. Ever since then, he had been particularly protective of Safia and her gallery.

She joined the group by the video bank, followed by Inspector Samuelson. Fleming touched her shoulder, his eyes wounded. “I’m so sorry. Your gallery, your work…”

“How much was lost?”

Fleming looked sick. He simply pointed to one of the monitors. She leaned toward it. It was a live feed. In black and white, she saw a view down the main hall of the north wing. Smoke roiled. Men, masked in protective suits, worked throughout the wing. A collection of them gathered before the security gate that led into the Kensington Gallery. They appeared to be staring up at a figure tied to the grating, a gaunt, skeletal shape, like some emaciated scarecrow.

Fleming shook his head. “The coroner will be allowed in shortly to identify the remains, but we’re sure it’s Harry Masterson, one of my men.”

The frame of bones continued to smoke. That had once been a man? Safia felt the world tilt under her, and she fell back a step. Fleming steadied her. A conflagration of a magnitude powerful enough to burn the flesh off the bone was beyond her comprehension.

“I don’t understand,” she mumbled. “What happened here?”

The man in military blue answered, “That’s what we’re hoping you can shed some light on.” He turned to the video technician. “Rewind back to zero one hundred.”

The technician nodded.

The military man turned to Safia as his order was carried out. His face was hard, unwelcoming. “I’m Commander Randolph, representative of the Ministry of Defence’s antiterrorist division.”

“Antiterrorist?” Safia stared around at the others. “This was a bombing?”

“That’s yet to be determined, ma’am,” the commander said.

The technician stirred. “All ready, sir.”

Randolph waved her to the monitor. “We’d like you to watch this, but what you’re about to see is classified. Do you understand?”

She didn’t, but she nodded anyway.

“Play it,” Randolph commanded.

On the screen, a camera showed the rear room of the Kensington Gallery. All was in order, though the space was dark, lit only by security lights.

“This was taken just after one o’clock,” the commander narrated.

Safia watched a new light float in from a neighboring room. At first, it appeared as if someone had entered, bearing aloft a lantern. But it soon became clear that the source of light moved on its own. “What is that?” she asked.

The technician answered, “We’ve studied the tape with various filters. It appears to be a phenomenon called ball lightning. A free-floating globule of plasma jettisoned from the storm. This is the first time in history one of the bloody buggers has been caught on film.”