“Well, here’s my problem.” Bryant seated himself wearily and helped himself to a ginger biscuit. “My problem is – dear Lord, it sounds so absurd. How can I explain this? Some of our most successful prosecutions have been built around a tiny shred of evidence, a piece of broken glass, a boot print, an overheard phrase. This investigation hangs on a sticker, a travel card, a few odds and sods and a bad feeling. Nothing more. They’ll hang me out to dry if I get it wrong this time.”
“Then let me see if I can help,” said Mrs Yu.
Bryant set out his case. “A student died of tobacco poisoning in the underground. But even though – as you say – the air in the tube is bad, there’s been no smoking down there for years. My coroner says someone sprayed the lad with the stuff. According to his medical records, he suffered from asthmatic attacks. We didn’t find an inhaler on him, so I’m thinking that the killer substituted his inhaler for one containing poison, then took it away. But I also have to look into the possibility of accidental death. You don’t suppose certain toxins – heavier-than-air ones – could have sunk to the bottom of the system and poisoned him, do you? Through these whirlpool things? We tested the air and found nothing.”
“That’s hardly surprising,” said Mrs Yu. “Every time a train rushes past it displaces the air and transfers it to another magnetic collection point.”
“Surely it would be easier to accept your coroner’s theory about the spray?” asked Maggie. “I don’t know why you’re making life difficult for yourself.”
“It’s what I do,” said Bryant glumly. “If his death was an accident, then Gloria Taylor was also an accident, and suddenly there’s no case. Which would be wonderful, because it would mean no-one else is in danger. The alternative is to look for a clever, calculating killer who murders randomly, without remorse, and who leaves absolutely no trace.”
“Well, it seems to me that you’re caught between two worlds, Arthur – the one that lies beneath London, and the hidden world in which this person you seek moves and connects. For once, you must try to think like a civilian and not like a policeman. I think the investigation is testing your powers in new ways. The tube network isn’t the only ghost system in operation – there’s an entire world of invisible connections we never normally get to see. It’s just a matter of finding the key. Let’s consult the cards.”
She pulled a key from her crimson coiffure, unlocked a drawer in her kitchen table and brought out a packet of tarot cards. “These are my special ‘Black Ace’ Russian Tarots. I keep them locked up because they’re dangerous in the wrong hands.” Maggie shuffled and Mrs Yu snickered.
“I hope they’re more accurate than your attempt to read tea bags,” said Bryant.
“Take a card.” She offered him the pack.
Bryant withdrew one and looked at it. “Oh, for God’s sake, that’s the nine of clubs,” he exclaimed in annoyance. “I can never find it in a normal deck.”
“Oh, that shouldn’t be there.” Maggie snatched back the card. “Deirdre and I were playing poker last night. Choose five more and turn them over.”
He set down the five lurid pictures: a man being struck by lightning, a baby being bitten on the face by a cobra, a pair of Siamese twins being sawn in half, some lepers burying a screaming man alive and a skeleton on a drip. “Oh, charming,” said Bryant. “I take it my future well-being is under question.”
“You mustn’t take them literally,” said Maggie. “They’re filled with codes and symbols. I’ll tell you what I see. Six suspects, three deaths, and a desperate flight through tunnels of darkness. Do you want a piece of cake?”
“No,” snapped Bryant, “give me a brandy. Listen, there’s something I wanted to show you, but I can’t get it to work.” He emptied the contents of his overcoat pocket onto the kitchen table, pulled a Liquorice Allsort off his phone and passed the handset to Mrs Yu. “Can you get it to the section with photos?”
Mrs Yu flicked open the photo file with practised ease and examined the contents. Maggie peered over her shoulder. The screen showed a series of brightly coloured patterns, mostly diamonds and zigzags, like the backs of playing cards. Mrs Yu shrugged and snickered. “You want to know what these are?”
“Yes, one of our detective constables forwarded them to me from the dead man’s laptop. What are they?”
“You should know; you see them all the time.”
“Well?” It irritated Bryant when others took pleasure in knowing more than he did.
“They’re tube train seats,” said Mrs Yu, chortling away. “Different livery patterns in different colour combinations. Different pictures for the different London lines.”
Bryant grimaced in annoyance. “Why would anyone want to take pictures of seat patterns?”
“You’re the detective,” said Mrs Yu, as her giggles erupted into bubbling laughter.
∨ Off the Rails ∧
38
On the Line
It was now 11:15 on Friday night, and the surveillance teams were still working across London, hoping to break the case.
To keep things fresh, they had swapped their subjects. Longbright had followed Nikos Nicolau to the Prince Charles cinema, where the young student sat through a double bill of lesbian vampire movies before returning home. Banbury kept tabs on Rajan Sangeeta, but lost him in between two nightclubs in Greenwich. Bimsley was close by Toby Brooke, who was now drinking alone in a crowded bar on Brick Lane. Mangeshkar took Theo Fontvieille because she could pace him on her motorcycle, and he had now pulled up in Mecklenburgh Square. Renfield was covering Ruby Cates, first at the college, then at the Karma Bar, and finally back to the house. For the most part, the PCU staff had managed to stick to their targets like shadows.
But there was a flaw in the plan. Nobody was running surveillance on Cassie Field. And Cassie was alone, on a deserted, rainswept railway station in South London.
♦
“I just don’t bloody believe it,” Theo shouted, hammering up the stairs of the house. “Look out the window!”
“What’s the matter?” Ruby swung her grey cast to one side and rose from the table, where she was making notes on the rubbishy laptop that had been supplied by Dan Banbury.
“Take a look, damnit. Down there in the street.”
Ruby thumped her way to the front window and opened the curtains. “What? I don’t see anything.”
“Exactly. Someone’s stolen my bloody car! I only left it a minute ago.”
“All right, calm down. Could it have been towed away?”
“What, at eleven o’clock at night? I’m outside of the restriction hours, and anyway, I have a parking permit.”
“You know how Camden traffic wardens are.”
“No, it’s been stolen. I knew it. You can’t keep anything nice in this city without some dickhead resenting you. I’m going to kill someone.” He stormed up and down in a rage.
“Okay, the first thing to do is to ring the Jamestown Road car pound, just to make sure it hasn’t been towed.”
Theo was pulled up short. “How do you know where the car pound is?”
“I can drive, I just can’t afford a car at the moment. Then call the police, or better still, get over to the station and fill in the necessary forms. If it has been stolen, you won’t be able to claim on your insurance without a case number. You didn’t leave the keys in the ignition again, did you?”
“No, of course not, I only – ” He patted his pockets. “Oh, no. I don’t understand. Someone must have been watching the house and waiting for me to return, standing there in the bloody rain – I only just got out of the bloody thing.”