After Dark by Jayne Castle

Lydia Smith experienced a "Lost Weekend" wherein two of the Hunters she was underground with claim she went rogue and ran away. She can't dispute the claim since she can't remember exactly what happened. But she's too cautious to have ever done something as stupid as run away from the men who were supposed to be protecting her. After the incident, she lost her university job and is now working at Shrimpton's museum of horrors. And she's just discovered a body. One that's not supposed to be there. The body of a man who was a ruin rat and sort of a friend. Whatever will the first client of her fledgling antiques-finding business think?

Emmett London is hard to disconcert. After all, he was the Guild Boss of a neighboring city and managed to completely overhaul that group's reputation into being something less than hired thugs and more like any other large business. Of course he hasn't told Lydia that he's a hunter. He's read her file and knows that she blames hunters in general for her lost weekend. Emmett just wants help finding an curio cabinet his family brought from Earth when they came through the Curtain and he thinks she might know some of the... less savory places to look.

Despite their total differences, Lydia and Emmett manage to not only find the curio cabinet, but in the process they take down a group working illegally in the tunnels, and rescue Emmett's nephew as well.

Ghost Hunters #1

Four stars

This book came out January 1, 2000

Followed by After Glow

Hard copy of mine

Opinions are my own