Percy thought about it a moment. What the professor was saying made sense. The only plan he really had was trying to communicate somehow while the spatial disturbance was acting up and desperately hoping someone else was on the other side.
It was pretty pathetic but it was the only plan he had. What else was he supposed to do? Lock Penelope inside this hospital room and hope his real sister visited the disturbance site in the other world at some point? That would never work.
"If sound can travel through the spatial disturbance, we might have a shot," Percy said though he wasn't positive. There were still a lot of factors at play here. "I am willing to bet my other self is researching the same phenomenon we are. If he found the right place on his side, we might be able to contact him."