They entered the hotel lobby. The doorman was looking at the car now, checking colour, make and registration. Then he walked briskly up the steps and pushed open the doors. The car’s occupants were at the reception desk, their backs turned to him. He went to a bank of public telephones along the wall nearest the door, picked up a receiver, inserted a ten-pence piece and dialled seven digits. He had to wait seconds only for a response.

‘Achilles,’ he said, identifying himself. ‘I need to speak to Mr Vitalis.’

‘Mr Devereux, please,’ Sanders said to the woman behind the reception desk. She was wearing an identity badge and a well-worn smile.

‘Room two-two-seven,’ she said. ‘Can I call him for you?’

‘No thanks. That’s floor two, room twenty-seven?’ Sanders checked. The woman nodded, not about to waste a spoken answer. ‘Thank you,’ he said, turning from her. He stood for a moment, seeming to be deciding between the lift and the stairs. ‘Stairs,’ he said finally.

‘You take the stairs,’ Jilly objected. ‘I’ll take the lift. It’s been a long day.’

Sanders stared at her. ‘A lift is a trap, remember that. Once you’re inside, there’s no way out.’ He started walking towards the pink-carpeted staircase. ‘I’ll see you up there,’ he called.

Jilly looked to Hepton for a decision. Hepton shrugged his shoulders. Wearily they began to follow Sanders. He was right, though, that was the annoying part. He had obviously had some training in this sort of thing, while they were amateurs.

They climbed, counting the seventy-two steps to the second floor. The corridor was vacant, little noise coming from the rooms themselves. This was a hotel for the wealthy – businessmen as well as holidaymakers. And the wealthy had gone out to play in the London evening. Two things struck Hepton at the same time. The first was that Devereux might not be in; the second was that someone of his standing shouldn’t be able to afford the Achilles. Hepton had seen the three-figure room charges displayed beside the desk.

They passed an ice machine, a drinks dispenser and an electrically operated shoeshine, then stopped outside a door.

Room 227. Sanders paused, listened, then knocked. There was silence. He knocked again. Nothing. He rested his hand on the door handle and checked that the corridor was still empty. As he was about to turn the handle, the door was opened from within. A man in shirt and trousers stood there, hair unkempt, the shirt rumpled, socks but no shoes on his feet. He had obviously been awakened from a nap, and was trying to stifle a yawn. When he saw that the three figures outside his door were not members of the hotel staff, he widened his eyes a little, trying to rouse himself.

‘Yeah?’ he said.

‘Mr Devereux?’ Sanders had fixed a sympathetic smile to his face.