They had left him alone for these years, interrupting him only when he was—according to their idea—about to “murder” one of their own. There could only be one reason why he had been left like this: He was bait, and the house was a trap.

They must even now be rushing to this place. For they had undoubtedly bugged the entire building. God only knew, maybe there were even cameras. They could make cameras the size of a fingertip, microphones no bigger than specs of dust. Sarah used such things in the club’s security system.

“We have to leave here,” she said.

“But I—where?”

She stood up. “Is there any fuel?”

“What sort of fuel?”

“To make a fire! Chemicals! Petrol!”

He gestured toward some steel drums.

She went to them, ripped off the soft metal cover. It was some sort of chemical, but it didn’t smell flammable. Another was the same stuff.

But a third stank gloriously of the esters of earth-oil. It had been sent through their great retorts until it was a volatile. “This makes the auto go,” she said.

“I know what petrol is.”

She threw the barrel into the middle of the room. “Is the hidden route the same?” Every Keep had one, usually more than one. There were escapes for fire, escapes for attack, escapes for everything.

“The same.”

The petrol had finished gushing out, and now stood in a puddle on the floor. Miriam took the empty drum and rolled it back and forth over the remnant until it was nothing but a sack of powdered bone. Then she tossed it into the petrol, making sure that it was thoroughly soaked.

At that moment, she heard a sound, the creak of pressure being applied against the door. She took Martin’s shoulders, leaned against his ear. “They’re just outside,” she said. “About to burst in the door and all the windows at once.”

His lips twisted back in an ugly rictus. He really, really despised them, this hunted creature. Taking his still ice-cold hand, she led him to the far wall, where once the waste from the tannery had poured into the little river Bievre, long since covered over. She counted one, two, three stones up from the floor. Now she pressed the one that was under her hand.

A brutal shaft of sunlight shattered the darkness. The doorway was a white blaze filled with darting shadows. Martin screamed, the shuddering ululation of a Keeper in absolute fury. So rarely had she heard it that Miriam screamed, too, throwing back her head and howling to the rafters.

“Essence!”

The human cry stopped her. They came out across the great room. They had nets, nets and guns. She felt tears of anger streaming down her cheeks. She was almost immobilized, such was her rage at being threatened by them. She did not let herself succumb to these feelings, though. No, she must not. Instead, she drew a book of matches from her pocket.

“Madame, si’l vous plaît!”