[As soon as that door opens, Elliot is up on his feet and marching toward Leo. That look on his face? It is most definitely not pleased.]
What took you so long? [A demanding Elliot is a familiar Elliot. He takes a moment to eye those books before turning his sharp gaze back on Leo. Sure, the other boy had a habit of getting lost in libraries, but leaving without a word in a place like this? He wasn't going to stand for it.]