Author GB Pool has come out with a standalone novel, Caverns, which is a perfect winter read and just in time for Halloween! As someone who worked downtown Chicago, I could imagine this happening. Here is a brief description:
CAVERNS chronicles a nightmare that happens in Chicago in the dead of winter when huge caverns are discovered beneath several expensive condominiums built near Lake Shore Drive. The caves were carved out by enormous rats that have been feeding on the landfill for many decades, but the vermin are running out of food… below ground. The two men who find the caverns are being hunted in order to silence them because they know who own those condos and who authorized the shoddy city utilities project on which they were built. The powers-that-be want to bury their involvement as well as a handful of people who know about it before one of their costly investments falls into the lake. When it comes to a disaster, you have to wonder which is worse: man or beast.
Caverns is available in paperback on Amazon.