The August heat was rolling off of Arthur in waves, making it harder to fall asleep these days. Furthermore his brain was working overtime. There was just something about Merlin. For the last few days he had been unusually quiet, clumsier than normal, like his head was totally elsewhere. He tried everything, talking to him, distracting him, teasing him but more often than not, he got no reaction out of him at all. He couldn't deny that it got him worried. Tomorrow he'd try again. 'Well, whatever it is, I hope it'll pass.' he thought, and drifted off to sleep.