Chicaghosts Books in Order

When the stuffed gorilla Bushman disappears from a Chicago museum, retired detectives led by Aubrey Hamilton receive the unwanted assignment. What first seems a prank becomes a multiple-murder investigation, with evidence suggesting something supernatural behind the violent attacks.

Retired Chicago detectives led by Aubrey Hamilton investigate a giant excavation where pets and people are vanishing. Descending into the hole brings them against creatures dragging living prey underground, forcing the squad to seek unusual allies to stop the threat.

Cyclists and kayakers disappear near the Chicago River, where a monstrous woman-serpent feeds victims to her offspring. The retired Old Fart Squad investigates its connection to a vanished amusement park and devises a plan involving a goat as bait.

A new breed of parasitic spiders spreads through Chicago, reproducing inside human heads with deadly results. Retired detective Aubrey Hamilton and the Old Fart Squad confront the plague, bringing fire and liquid nitrogen against an intelligent, rapidly expanding threat.