In Grimslip, the streets are dangerous.
The tunnels beneath them are worse.
When vital undercity routes begin to vanish overnight, entire neighborhoods are cut off-trapped between rising floodwaters, collapsing infrastructure, and something far more deliberate stalking the dark.
Rook Vanner, a sharp-shooting rooster with a talent for bad decisions, and Marlowe Reed, a relentless otter who refuses to abandon the city's forgotten, are thrown into a brutal new conflict beneath Grimslip's streets.
Down below, a feral king has risen.
Ratatattat-a mutant rat warlord-controls the hidden paths, the bell networks, and an army that knows every crack in the city's foundations. Above him, a cold and calculating force tightens its grip, sealing exits, controlling movement, and turning the undercity into a trap.
Caught between chaos and control, the Enforcers must navigate a war where every route is contested, every alliance is temporary, and every step could be their last.
Because in Grimslip, survival isn't about fighting harder.
It's about finding a way through...
when there is no safe passage.