That sound immediately has Five awake and on high alert. Eyes shooting open, posture shifting quickly into a defensive one and back hitting the wall. Somehow, there's now a short, but very pointy, knife in his right hand. Must have been under the pillow all along.

Alarmed eyes fall on Klaus' form on the floor, squinting in suspicion a moment later. Five doesn't look any more relaxed to see his brother in his room than when he thought it was someone breaking in.

"What are you doing?" Five's question is a hiss through gritted teeth. He is still trying to keep his voice low so he sounds like a disgruntled cat.