Catherine Chandler is brutally attacked, and then miraculously rescued by Vincent, a mysterious man-beast who dwells beneath the streets of New York

A "man-beast" is reported to be slashing and murdering subway criminals. Catherine must find out if Vincent is the killer.

While trying to protect Catherine in the world Above, Vincent is captured by a vicious street gang

A Halloween ball cannot masquerade political intrigue as Catherine and Vincent come to the aid of an Irish peace activist

After investigating the mob-related death of a longshoreman, Catherine's life is endangered

Catherine abandons her plan to relocate to Providence in order to save Vincent, who's been captured by a Columbia University scientist

Catherine falls into the dangerous world of voodoo after she investigates a wealthy businessman's bizarre death

To expose the corrupt organization behind a "model" children's foster home, Vincent and Kipper, a boy from Below, seek Catherine's help

In order to convict a cop killer, a deaf girl from Below must give up her protected life

Catherine turns to a renegade from Below in order to free Vincent and Father from a dangerous underground "maze"

Vincent and Catherine help a Chinatown beauty avoid an arranged marriage by escaping underground

After a deadly new recreational drug sweeps through Manhattan, Catherine asks Vincent to help find its source

A beautiful attorney seduces Catherine’s boss, Joe Maxwell, creating a serious conflict of interest

Painful childhood memories resurface for Vincent after his long-lost "brother" Devin returns to the world Below

Catherine fails to heed Vincent's warnings about her dangerous former law-school beau

After Mouse discovers a treasure-filled ship buried beneath the city, Vincent’s world is filled with greed and strife

A Gypsy boy clears his father's name and regains the love and trust of his grandparents with Vincent and Catherine's help

Vincent prepares for a battle to the death after Catherine is kidnapped by a giant warri

Vincent's world Below is threatened by a massive tower being built by Elliot Burch, a former suitor of Catherine's. She agrees to marry Burch on the condition that he halt construction.

Catherine and Vincent are forced to question if they could ever be truly happy together