These tunnels ran directly under the Chicago River, bypassing the standard sewer lines and subway tracks.

I had walked those cold, wet tunnels myself, guided by the flashlights of Kane’s guards.

Dante traced a glowing blue line with his index finger.

The tunnel network originated beneath the ruins of the Blackwood Towers.

But it did not end at the harbor.

It branched out, connecting to several private basements across the city’s most affluent districts.

Dante zoomed in on one specific terminal point on the North Side.

The exit was located beneath a registered historical mansion in the Gold Coast.

Dante tapped his fingers on the desk, his brow furrowing as he pulled up the property tax records for that address.

The mansion belonged to a private holding company called Vanguard Holdings.

Dante opened a secondary search on the holding company’s board of directors.

A single name stood out at the top of the list.

Thomas Sterling.

The Police Commissioner of Chicago.

Dante sat back in his chair, his face hardening into a mask of pure stone.

“Sterling,” Dante whispered to the empty room.