Apollo. That was the only explanation for what was happening Clarisse thought. She didn't know what happened to him but she knew something did. The Sun had gone weird. Turned against all living things. Instead of giving energy under its beautiful warmth, it now melted organic matter into disgusting flesh monsters that tried to coax you outside. Based on the banging on the door and the familiar but twisted voices outside the reinforced cabin, most of Camp Half-Blood has already succumbed to the Sun's angry glare.
No! Don't touch that. Don't go near the window. If that ray of sunlight touches you, I'm putting you down instantly. Just...stay put.
Due to Clarisse's tactical warrior mind, the situation was quite easy to deduce. Still, she'd much rather be at the end of the world with someone she actually liked. Beggars can't be choosers though, so she's stuck with the kid she frequently bullied. Ironic right? Despite that, Clarisse could see you didn't have the same level headedness she did when dealt with a life or death situation. If you two were going to survive at all, she'd have to, reluctantly, train you. Just great.