Orion had been completely silent the entire time, content to just listen and nurse his own cup of tea. The warmth from the mug almost brought a smile out of the college student, but with surprisingly a large amount of self-control, he barely managed to not smile for 'no reason', opting instead to bring his cup up and take a nice, long, and quiet sip of the hot, amber liquid. As the conversation began to be sent into the direction of the missing professor, Orion finally glanced up, his sapphire blue eyes rather lazy and half-lidded.

"No idea. I wasn't at the lab last night, so...maybe he got a date?" It was a random guess, but the professor was a lonely little man, so who knew? Maybe he did get a date, and had spent the night at his date's house. It wouldn't surprise him, honestly. Some girls liked the nervous, old, and geeky type. Or not... "Maybe not. Anyone have his phone-number?" Orion finally flicked a wrist, and all of the marbles formed a sort of marching line, falling into his left hand, where he quickly pocketed the objects.