Actually, quite a lot of the Assassin was left, but decomposition was very rapid. Simon did the best he could with a magnifying glass and a penknife. He found that the body was almost entirely composed of bone and flesh in a honey-comb like structure. The bone being highly flexible, and the cavities filled with grey flesh. Flesh which quickly liquified and drained away from the bone. There was no blood, and Simon could find no trace of internal organs.

While he worked two more cars drove up, and gave him a little more light, but soon he had to give up. As he walked slowly back a spotlight sprang suddenly to life, and a pleasant authoritative voice spoke.

"Will you stay where you are, please, Doctor Cartwright."

Simon obeyed. Hell, he thought wearily. Officialdom has arrived. He shaded his eyes against the light, but he could see nothing.

"Who's that?" he asked.

"Commanding officer in charge of operations in this emergency. You've made an examination?"

"As far as I could. There's complete decomposition now."

"Oh, I see." A slight pause, then; "Perhaps I'd better put you in the picture. This is armed aggression, Doctor Cartwright. In any language it says war. Do you understand? We're at war, now.

"We found the vessel your friend came in several days ago. It was in the sea, twenty miles from here. Its discovery was kept secret because we weren't sure of its point of origin. Our people are engaged in finding the method of propulsion. They say it will give us the ability to travel in space. They also say that they can find the approximate position of its home planet. All that is top priority, of course, but in the meanwhile we must have an emergency line of defence against these things. We want to know how to find them and how to destroy them with the least possible expenditure of life and material. You understand?"

"Yes. I've got an idea about light waves. I fired a shot at it back there. The bone structure—"