“Well, that’s how he killed everyone on the island—after he’d finished with Rory McDougal and Sylvie Binns.” I took a deep breath, wondering if there was anything I could do. Tim was right next to the edge of the cliff. I was a couple of feet in front of him. We were both lying down. Nadler was standing over us, aiming with the gun. If we so much as moved, he could shoot us both. I had to keep talking and hope that I might somehow find a way to distract him.

“Janet Rhodes was stabbed with an Eiffel Tower,” I went on. “But I noticed that there was a tear in the canopy above her bed. I should have put two and two together and realized that the Eiffel Tower was always there, above the bed. It must have been mounted on some sort of spring mechanism. Nadler knew that was where she’d be sleeping. All he had to do was press a button and send the model plunging down. He was probably miles away when he killed her.”

“That’s right!” Nadler giggled. “I was back on the mainland. I was nowhere near!”

“But what about the face you saw?” Tim asked. “The skull at the window! Brenda saw it, too!”

“You’ve already answered that one, Tim,” I said. “A remote-control helicopter or something with a mask hanging underneath. Nadler controlled that, too. It was easy!”

“But how could he see us?”

I glanced at Nadler and he nodded. He was happy for me to explain how it had been done.

“The whole island is covered in cameras,” I said. “That was Rory’s security system. We’ve been watched from the moment we arrived. Nadler knew where we were every minute of the day.”

“Right again!” Nadler grinned. He was pleased with himself, I could see that. “It was easy to hack into McDougal’s security system and redirect the pictures to my own TV monitor. I was even able to watch you in the bath!”

“That’s outrageous!” Tim was blushing. He knew that Nadler would have seen him playing with his plastic duck.

“Nadler had positioned the globe up on the roof,” I went on. “If we’d gone up and looked we’d probably have found some sort of ramp with a simple switch. He waited until Libby Goldman came out of the front door and then he pressed the button that released the globe. It rolled forward and that was that. She never had a chance. He killed Eric and Brenda the same way. First he turned out the lights. Then he fired a bullet and brought down an organ pipe . . . both by remote control.” I paused. “How about Mark Tyler?” I asked.