Doors Open Both Ways [theoutlawrivertam]
Bruce was idling in the lab, just running the numbers on the Tesseract and watching it work. Thor had agreed for himself and Tony to borrow it to study, and already Bruce had lost three days working on it and with it, and had pages of notes about the thing. It was, in a nutshell, fascinating.
Especially when it played up like it was.
It was more active now than at any other time since he had been studying it. Flickering to life, then falling quiet, until it positively flared into life, sending him sprawling off his chair, ears ringing and blind from the flash of light.
When he came back to himself, Bruce sat up and waved smoke out from in front of his face. Through the gloom, he was sure he could sense someone moving in the lab. “I… Hello? Someone there?” he called, standing and turning the extractor fans on to clear the lab out.