My office suite still had a crime scene seal across the door, but I broke it and went into the chaos. For a moment, my spirits flagged again on seeing the mess. I made a feeble stab at straightening things out, putting drawers back in the desk, returning ordnance maps to their shelves, but the chaos was overwhelming. I wondered who I could hire to help since the temporary agency had backed away from me at warp speed.

I tried to remember the date that Petra had been in my office to use my computer, but I could only guess. It had been around two weeks before the Navy Pier fundraiser. I set up a program to find all the Internet sites visited during those weeks.

While the program ran, I knelt to collect papers from the floor, gathering them in a big bundle and laying them on the couch. One of the documents was the transcript of the Steve Sawyer trial. I flipped through the pages, looking again for my father’s name, but instead “Lumumba” jumped out at me.

“Lumumba has my picture,” Steve Sawyer had said on the stand.

Lumumba: Lamont, in the Anaconda’s secret code. Lamont had Sawyer’s picture. What did that mean? Was it some cryptic way of saying that Lamont had fingered him? Or did it mean he was expecting Lamont to testify for him. As in, Lamont has my picture, Lamont has my back.

I wondered if Curtis Rivers would interpret … Curtis Rivers! I smacked my forehead. African names. Kimathi, that was what Rivers called the man who swept the sidewalk in front of his store. While my Internet-search program was running, I pulled up a separate browser window and looked up Kimathi.

Dedan Kimathi, a rebel leader in Kenya in the 1950s. Feeling a sort of nervous dread, I put the name into the Illinois Department of Corrections database. There he was: January 1967, convicted of murdering Harmony Newsome, served forty years, released a year ago January. No time off for good behavior, often in isolation for unspecified, violent outbreaks. Living since his release on Seventieth Place, at the same address as Fit for Your Hoof.

I stared at the screen for a long time, remembering Rivers’s fury when I’d asked where to find Steve Sawyers, of Hammer Merton’s scorn when I asked him the same question.

My brain was frozen. I couldn’t concentrate on those old Anacondas or Miss Claudia’s dying needs. If Petra hadn’t gone missing, I’d have driven straight to Curtis Rivers’s shop and camped out until he and Kimathi-Sawyers emerged. And then I’d have energetically convinced them to tell me what had happened to Lamont-Lumumba. But Petra was fragmenting my mind and sapping my energy.