Intruder

"What the hell happened here? Five guards dead? Without so much as a struggle?", one of the soldiers who had come over because of the noise said, confused.

"Idiot, sound the alarm first. Alert everyone. There are intruders here.", the soldier next to him reprimanded him. All of a sudden, they felt a cold shiver up their necks. They looked back with surprise, but saw nothing. They looked back at the guards. 

"I don't have the horn. Maybe someone here does.", the first soldier said.

"I don't really like taking things from the dead.", his comrade said, a little uneasy by the fact that his partner was moving corpses and looking for a horn.

"I cannot do anything about this. Do you understand the severity of the issue? Five people dead, and no one heard anything. If, at times like these, someone important gets assassinated, then we are officially screwed.", he said as he finally fished out a peculiar shaped rock. It had a button on it.