Publishers Weekly: Inventively mixing mystery, magic, and alternate history, Glover’s nail-biting debut takes readers to Reconstruction era Philadelphia. Henrietta “Hetty” and Benjamin “Benjy” Rhodes—both adept at sigil magic that draws on the constellations—are famed conductors for the Vigilance Society, which shepherded enslaved Black people to freedom along the Underground Railroad. Stories of their trips into the South are legendary in their Philadelphia community even a decade after the Civil War. Now, Hetty and Benjy use their magical and analytical skills as detectives, dealing with missing person cases, murders, and other crimes the white police force chooses to overlook. But when one of their friends turns up dead and their suspicions fall close to home, they’ll need to work out who in their community is not who they say they are. The pace is relaxed but the tension steadily builds as Glover weaves each detail into a satisfying mystery. Frequent flashbacks to Hetty and Benjy’s thrilling exploits as conductors on the Underground Railroad reveal how Hetty’s tough choices during the Civil War led to her life today. Readers will be surprised but gratified by an ending that shows just how past actions inform the present in unexpected ways. Glover is a writer to watch.