ice. The ice would then melt leaving only water behind. Or a gun could be attached to a length of elastic which would then whip the gun up a chimney or out of a window."
"There are no chimneys and as Mr. Mercier has already pointed out, the windows in our rooms are all sealed," said the manager.
"And I think ice is unlikely as he would have had to carry it in from outside and the Singaporean climate does not lend itself to carrying ice around," said Inspector Zhang. "And if Mr. Wilkinson wanted us to make it look like he had been murdered, I don’t think he would have positioned himself on the bed. The floor would be a more likely place. Plus, there is the matter of room service. He spent time with the fragrant Miss Lulu, then ordered a meal. Hardly the actions of a man who was about to take his own life." He folded his arms. "So, that leads me to the fifth type of scenario discussed by Mr. Carr. A murder which derives from illusion or impersonation, where the victim is already dead but the murderer makes it appear that he is still alive."
"How would that work in this case, inspector?" asked Miss Berghuis, frowning.
"If for instance it was the prostitute who killed Mr. Wilkinson and she then arranged for someone else to make the call to room service," said Inspector Zhang. "That would give her an alibi when in fact Mr. Wilkinson was already dead when she left the room."
"Do you think that’s what happened?" asked Sergeant Lee.
"That’s simply not possible," said Miss Berghuis. "When a call is made to our Room Service section, the number flashes up on the phone. An order would not be accepted if it came from outside the hotel."
Inspector Zhang nodded thoughtfully. "And of course he spoke to his wife after he had ordered from room service so I do not think that Ms. Lulu was the killer. So, that then brings us to number six on Mr. Carr’s list. One of the more complicated of his explanations for a locked room murder, and one of the most successful in works of fiction. In such a situation we have a murder which although committed by somebody outside the room nevertheless appears to have been committed by someone inside the room."
Mercier scratched his bald head. "That doesn’t make sense," he said.
"Oh Mr. Mercier, it makes perfect sense," said Inspector Zhang. "Take for instance the icicle dagger that Mr. Carr spoke of. Suppose it could be fired through an open window or through a hole drilled into the door. Or a knife thrower in a room opposite the building who throws a knife through an open window but has it tied to a length of string so that he can pull the weapon back. It thus appears that the killer was inside the room when in fact he was outside all the time."
"But the windows are sealed and there are no holes in the door, and besides the main door opens into the sitting room, there is another door off that to the bedroom," said the manager. "The ice dagger would have to turn through ninety degrees and pass through two doors."
Inspector Zhang sighed. "Madam, I am not suggesting for one moment that Mr. Wilkinson was killed by a weapon made from ice."
"Well you are the one who keeps mentioning it," said the manager, flashing him a withering look. "And if the knife didn't melt, where is it?"
"Exactly," said Inspector Zhang. "You have put your finger on the crux of the conundrum. Where is the knife? If indeed it was a knife."
"Do you know?" asked Mercier. "Why are you asking us if you know?"
"I was being rhetorical," said Inspector Zhang. He took off his glasses and began to methodically polish them with his handkerchief. "I am not sure where the murder weapon is, but I have my suspicions. However, let me first finish Mr. Carr's list of explanations with the seventh, which is effectively the exact opposite of the fifth."
Everyone frowned as they tried to remember what the inspector had said was the fifth method. They all looked around, shrugging at each other.
Sergeant Lee walked over to Inspector