The return trip to the house, protections and all, hadn't been entirely fruitless, but Edwin was still only working with partial information. More information than he'd had before, yes, but still not everything, and he was guessing that his correction for the date -working the circles to support it being that day's date instead of whatever the original date had been- would even work.

He nodded at Charles' question as he finished chalking the last line, using one of the empty storage rooms in the building instead of working directly in their office, "It is." He set the chalk aside, dusting his fingers because he'd almost forgotten how much he hated that particular sensation, "Worst case, this simply doesn't work and I'll have to dig into deeper research, see what I can find." There was no mention of disbanding the Agency, but he didn't feel he had to mention it again as he'd already made it clear that it would be too dangerous to continue.

He took a deep breath to steady himself, biting at the inside of his cheek, looking over the work to make sure nothing was out of place, "We've only got to step into it, same as any demon trap runework circle." He stopped himself from explaining further, because it wasn't as if Charles didn't know.

He drew himself up, both brows lifting a little as he offered Charles a hand, "Together?"