The hours ticked away with Groves and Chongo smoking havannas waiting for the shoe to drop. Chongo was about to crawl out of his skin. Lunch had come and gone, sandwiches and chips brought in from the commisary. Not bad, and definitely better than the c-rations that the boys were chewing on the continent, much better than going hungry. Bathroom trips were executed as efficiently as possible. No one wanted to miss their chance to stop the "big bang", and nobody wanted to die on the can should the others fail to do so.
Laura came and went between the lab and the college checking with the security forces in place. In an outfit of a nice past the knee skirt and a loose cardigan sweater over a white blouse, she looked just like any coed attending classes. Kerchak had not yet showed. For some reason Chongo was worried about him.

Ursula met Otto and Bruno at a park outside the city. She personally ranted at Otto for awhile, what she'd saved from her conversation with Bruno and then went over the plan again. She had enough explosives to accomplish the demolition of the building which was to be followed by exploding the pile up and out of the remains of the building. Unfortunately she only had a few incendiary devices. She'd have to be very careful in emplying them. It would be fine to catch a file room on fire but accidentally getting one of the radioactive storage rooms would be bad. She wanted to turn Chicago into an unseen fiery hell, but not with her still there. The smoke bombs she had plenty of. They were mostly meant for troop deployment on a battlefield, but she'd thought they might be handy. Together the three of them decided to wait for the evening staff to come in. Otto and Bruno's trip into Chicago had taken all night and a little darkness would help the mission. It would also give Otto and Bruno a chance to get a few winks and Ursula some time to review and smooth out any wrinkles in her plan. She was pretty sure that at least either Bruno or Otto would be killed, maybe both, as long as it wasn't her, no big loss.