“Cheeky bastard.” Annie sneezed, blew her nose and wandered off, reaching in her deep pocket for her notebook. Banks watched her go and wondered again whether his suspicions were correct. It was nothing concrete, just a slight change in her manner and appearance, but he couldn’t help feeling that she was seeing someone, and had been for the past while. Not that it was any of his business. Annie had broken off their relationship ages ago, but – he didn’t like to admit this – he was feeling pangs of jealousy. Stupid, really, as he had been seeing DI Michelle Hart on and off since the previous summer. But he couldn’t deny the feeling.

The young constable, who had been talking to the leading firefighter, walked over to Banks and introduced himself: PC Smythe, from the nearest village, Molesby.

“So you’re the one responsible for waking me up at this ungodly hour in the morning,” said Banks.

PC Smythe paled. “Well, sir, it seemed… I…”

“It’s okay. You did the right thing. Can you fill me in?”

“There’s not much to add, really, sir.” Smythe looked tired and drawn, as well he might. He hardly seemed older than twelve, and this was probably his first major incident.

“Who called it in?” Banks asked.

“Bloke called Hurst. Andrew Hurst. Lives in the old lock-keeper’s house about a mile away. He says he was just going to bed shortly after one o’clock, and he saw the fire from his bedroom window. He knew roughly where it was coming from, so he rode over to check it out.”

“Rode?”

“Bicycle, sir.”

“Okay. Go on.”

“That’s about it. When he saw the fire, he phoned it in on his mobile, and the fire brigade arrived. They had a bit of trouble gaining access, as you can see. They had to run long hoses.”

Banks could see the fire engines parked about a hundred yards away, through the woods, where a narrow lane turned sharply right as it neared the canal. “Anyone get out alive?” he asked.

“We don’t know, sir. If they did, they didn’t hang around. We don’t even know how many people live there, or what their names are. All we know is there are two casualties.”

“Wonderful,” said Banks. It wasn’t anywhere near enough information. Arson was often used to cover up other crimes, to destroy evidence, or to hide the identity of a victim, and if that was the case here, Banks needed to know as much about the people who lived on the barges as possible. That would be difficult if they were all dead. “This lockkeeper, is he still around?”

“He’s not actually a lockkeeper, sir,” said PC Smythe. “We don’t use them anymore. The boat crews operate the locks themselves. He just lived in the old lockkeeper’s house. I took a brief statement and sent him home. Did I do wrong?”

“It’s all right,” Banks said. “We’ll talk to him later.” But it wasn’t all right. PC Smythe was clearly too inexperienced to know that arsonists often delight in reporting their own fires and enjoy being involved in the fire fighting. Hurst would now have had plenty of time to get rid of any evidence if he had been involved. “Heard anything from Geoff Hamilton yet?” Banks asked.

“He’s on his way, sir.”

Banks had worked with Hamilton once before on a ware-house fire in Eastvale, which turned out to have been an insurance fraud. Though he hadn’t warmed to the man’s gruff, taciturn personality, he respected Hamilton’s expertise and the quiet, painstaking way in which he worked. You didn’t rush things with Geoff Hamilton; nor did you jump to conclusions. And if you had any sense, you never used the words “arson” or “malicious” around him. He had been browbeaten too many times in court.

Annie Cabbot joined Banks and Smythe. “The station received the call at one thirty-one A.M.,” she said, “and the firefighters arrived here at one forty-four.”

“That sounds about right.”

“It’s actually a very good rural response time,” Annie said. “We’re lucky the station wasn’t staffed by retained men.”

Many rural stations, Banks knew, used “retained” men, or trained part-timers, and that would have meant a longer wait – at least five minutes for them to respond to their personal alerters and get to the station. “We’re lucky they weren’t on strike tonight, too,” he said, “or we’d probably still be waiting for the army to come and piss on the flames.”

They watched the firefighters pack up their gear in silence as the darkness brightened to gray, and a morning mist appeared seemingly from nowhere, swirling on the murky water and shrouding the spindly trees. In spite of the smoke stinging his lungs, Banks felt an intense craving for a cigarette rush through his system. He thrust his hands deeper into his pockets. It had been nearly six months since he had smoked a cigarette, and he was damned if he was going to give in now.

As he fought off the desire, he caught a movement in the trees out of the corner of his eye. Someone was standing there, watching them. Banks whispered to Annie and Smythe, who walked along the bank in opposite directions to circle around and cut the interloper off. Banks edged back toward the trees. When he thought he was within decent range, he turned and ran toward the intruder. As he felt the cold, bare twigs whipping and scratching his face, he saw someone running about twenty yards ahead of him. Smythe and Annie were flanking the figure, crashing through the dark undergrowth, catching up quickly.

Smythe and Annie were by far the fittest of the three pursuers, and even though he’d stopped smoking, Banks soon felt out of breath. When he saw Smythe closing the gap and Annie nearing from the north, he slowed down and arrived panting in time to see the two wrestle a young man to the ground. In seconds he was handcuffed and pulled struggling to his feet.

They all stood still for a few moments to catch their breath, and Banks looked at the youth. He was in his early twenties, about Banks’s height, five foot nine, wiry as a pipe-cleaner, with a shaved head and hollow cheeks. He was wearing jeans and a scuffed leather jacket over a black T-shirt. He struggled with PC Smythe but was no match for the burly constable.

“Right,” said Banks. “Who the hell are you, and what are you doing here?”

The boy struggled. “Nothing. Let me go! I haven’t done anything. Let me go!”

“Name!”

“Mark. Now let me go.”

“You’re not going anywhere until you give me a reasonable explanation why you were hiding in the woods watching the fire.”

“I wasn’t watching the fire. I was…”

“You were what?”

“Nothing. Let me go.” He wriggled again, but Smythe kept a firm grasp.

“Shall I take him to the station, sir?” Smythe asked.

“Not yet. I want to talk to him first,” said Banks. “Come on, let’s go back to the canal.”

The four of them made their way through the woods back to the smoldering barges. Smythe kept a firm grasp on Mark, who was shivering now.

“See if you can scrounge up some tea or coffee, would you?” Banks said to Smythe. “One of the fire crew’s bound to have a flask.” Then he turned to Mark, who was staring at the ground shaking his head. Mark looked up. He had pale, acned skin, and the fear showed in his eyes, fear mixed with defiance. “Why won’t you let me go?”

“Because I want to know what you’re doing here.”

“I’m not doing anything.”

“Why don’t I believe you?”

“I don’t know. That’s your problem.”

Banks sighed and rubbed his hands together. As usual, he had forgotten his gloves. The firefighters were resting now, most of them in silence, sipping tea or coffee, smoking and contemplating the wreckage before them, perhaps offering a silent prayer of thanks that none of them had perished. The smell of damp ash was starting to predominate, and steam drifted from the ruined barges, mingling with the earlymorning mist.

As soon as Geoff Hamilton arrived, Banks would accompany him in his investigation of the scene, just as he had done on that previous occasion. The fire service had no statutory powers to investigate the cause of a fire, so Hamilton was used to working closely with the police and their scene-of-crime officers. It was his job to produce a report for the coroner. There had been no one hurt in the warehouse fire, but this was different. Banks didn’t relish the sight of burned bodies; he had seen enough of them before, enough to make fire one of the things he feared and respected more than anything. If he had to choose a floater over a fire victim, he’d probably choose the bloated misshapen bulk of the former rather than the charred and flaking remains of the latter. But it was a tough choice. Fire or water?