Without further ado, I give you the last paragraph of chapter 6.

After the day he had, the solitude was a blessing. Modifying the forcefield generator for tracking and mobility was slow, painful work but soon enough, a light clicked on and the Geiger counter began clicking. Earlier that morning, Lex thought that his forcefield generator was as ugly and chaotic as anything he would ever make. The monstrosity he’d turned it into proved that laughably wrong. He managed to work in a light antigravity field and a set of spider-like legs to make mobility easier, but hardly graceful. There was a barely-usable interface to calibrate the tracking, actual navigation relying on the annoying and imprecise clicking of the geiger counter. His only solace was knowing that, once it served its purpose, he could pull it apart piece by piece and build something better. In the meantime, it was functional enough to serve him. It was a victory, but a small one. Just enough to leave Lex feeling hollow when the work ended. As much as working with the device frustrated him, it kept his mind off of the unfamiliar ache spreading through his chest. Assuming he could even find Jimmy, he still had no idea what to do about him. Any attempt to form a coherent, productive thought was drowned in unanswered questions and useless anxiety. He needed to calm himself down, focus on being productive. The only way out was to move forward.

Other progress notes on the Chaos/Theory end, chapter 5 was beta-ed but not posted long ago (again, we want to have a backlog so we can provide more reading rather than leave everyone in a hiatus again. Thanks, @chronicangel!