“Building wasn’t occupied,” Murphy said. “Being renovated, actually.”

“No one got hurt,” I said. “That’s a plus.”

Murphy gave me a cryptic look. “You willing to work off the books? Per diem?”

I sipped coffee to cover up a wince. I far prefer a two-day minimum. “I guess the city isn’t coughing up much money for consultants, huh?”

“SI’s been pooling the coffee money, in case we needed your take on something.”

This time I didn’t bother to hide the wince. Taking money from the city government was one thing. Taking money from the cops in SI was another.

Special Investigations was the CPD’s version of a pool filter. Things that slipped through the areas of interest of the other departments got dumped on SI. Lots of times those things included the cruddy work no one else wanted to do, so SI wound up investigating everything from apparent rains of toads to dogfighting rackets to reports of El Chupacabra molesting neighborhood pets from its lair in a local sewer. It was a crappy job, no pun intended, and as a result SI was regarded by the city as a kind of asylum for incompetents. They weren’t, but the inmates of SI generally did share a couple of traits-intelligence enough to ask questions when something didn’t make sense, and an inexcusable lack of ability when it came to navigating the murky waters of office politics.

When Sergeant Murphy had been Lieutenant Murphy, she’d been in charge of SI. She’d been busted for vanishing during twenty-four particularly critical hours of an investigation. It wasn’t like she could tell her superiors that she was off storming a frozen fortress in the near reaches of the Nevernever, now, could she? Now her old partner, Lieutenant John Stallings, was in charge of SI, and he was running the place on a strained, frayed, often knotted shoestring of a budget.

Hence the lack of gainful employment for Chicago’s only professional wizard.