Books like Steeplejack by A. J. Hartley

When ordinary Londoner Richard Mayhew rescues a bleeding stranger, he is thrust into London Below, a shadowy realm of monsters, angels, and underground society that forces him to fight for survival before he can return home.

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In the unforgettable Le Cirque des Rêves, two young magicians, Celia and Marco, are locked in a nocturnal duel of wonder and will—an impossible game where love and magic collide on a stage of breathtaking spectacle.

Inspector Tyador Borlú journeys from Besźel to Ul Qoma to investigate the murder of a woman, navigating two distinct cities that both share one physical space yet have separate identities.

Mortal Engines whisks readers to a steampunk world where cities become colossal machines that devour one another, following apprentice Tom Natsworthy and rebel Hester Shaw as they explore the last remaining lands.

Mickey and his friends on a school adventure seek missing puzzle pieces, but a secret about Mickey's father's death and an escalating danger pull them into a thrilling mystery of investigation and peril.

He fought to seek his fortune. Would he lose a greater treasure: the love he left behind? As the son of the squire of Grimston Way, aristocrat Rogan Chantry has fought hard to win his independence from Sir Julien Bley and the British South Africa Company. Now, his pursuit of a mysterious deposit of gold, marked on a map willed to him by his murdered uncle, Henry Chantry, is challenged by a new complication: the impending British colonization of South Africa. Can Sir Rogan find the gold in the midst of escalating tensions among the native tribesmen, the missionaries sent to win them, and the new colonists? Meanwhile, Evy Varley, the woman Rogan loves back in England, is headed for a brave yet dangerous confrontation with Henry's killer--but at what price? With so much against Rogan and Evy, a reunion seems improbable, if not impossible. Can yesterday's promise hold them faithful to the hope of future freedom and a victorious love?From the Trade Paperback edition.

In a thrilling young‑adult adventure, a friendly gorilla named Sally Jones travels from the docks of Lisbon across the seas to clear her friend, sailor Henry Koskela, who has been falsely accused of murder.

A young reader’s fantasy adventure where friendship and mystery intertwine amid castle halls, Viking lore, and supernatural magic.

A thrilling mystery about a young detective tasked with uncovering a dangerous secret society.

Two boys and a girl investigate a crime in New Orleans.

Hardy brothers Frank and Joe investigate Evan Davis’s murder—a runaway pushed from a New York subway—threatening other shelter teens and uncovering suspects linked to a political family.

A modern boy who finds a key is whisked back to 1830 Clerkenwell, where he and friends must solve a crime to protect their future.