Books like Sea of Shadows by Kelley Armstrong

Three teenage friends investigate haunting mysteries, uncover assassins, and welcome a new ally to the paranormal firm Lockwood & Co.

A teenage girl discovers she is a living science experiment and a powerful necromancer, forced to flee a sinister organization with her supernatural friends.

Lucky, a lone dog in the bustling city, must join a group of separated Leashed Dogs to survive a devastating earthquake.

Elena Michaels lives a double life, turning to her werewolf nature in the night while craving a normal, suburban existence.

A daring group of young warriors race across stormy seas and a bitter winter to recover a stolen sacred relic, battling pirates and facing ruin to prove their honor.

A vivid continuation of Daughter of Smoke and Bone, where Karou confronts her identity and the lengths she will go to seek vengeance.

Sixteen-year-old Maya, a teenage girl living on Vancouver Island, suspects there may be a connection between her birthmark, family life, and strange events occurring in her community.

The Walker siblings embark on a perilous journey across time to rescue a vanished Wind Witch, facing ancient Rome, World War II, and Tibet while confronting betrayal, wonder and the supernatural.

In the first book of a thrilling middle‑grade fantasy series, the Walker siblings uncover a haunted Victorian house, a family legacy, and a world‑threatening conspiracy while battling medieval warriors, supernatural pirates, and a power‑hungry queen.

Clara Gardner discovers she is destined to protect her town from supernatural threats—while navigating first love, family secrets, and an ominous fallen angel.

Jacob Reckless, a daring treasure hunter in a world behind a mirror, must rescue his younger brother who becomes cursed to turn to stone after following him into the perilous realm of dangerous magic.

Lucky and his Leashed Dogs find a new forest with abundant food and water, only to discover it is claimed by a fierce pack of Wild Dogs led by a menacing Alpha. Lucky must sneak behind enemy lines and decide who his true allies will be.

Sierra Santiago discovers that the murals in her Brooklyn neighborhood are alive, revealing her family’s secret as shadowshapers—and she must confront an evil anthropologist to protect her loved ones.

After surviving a serial killer attack, Rory Miller enters witness protection with her father and sister Darcy in the island town of Juniper Landing. As the sisters reestablish their lives, a new friend’s disappearance threatens to reopen the nightmare.

During the Italian Renaissance, a seventeen‑year‑old apprentice named Luca Vero is tasked with uncovering the truth behind supernatural claims that threaten the Catholic Church, while a young abbess named Isolde faces accusations of witchcraft in a medieval nunnery.

During World War II, fourteen‑year‑old Jill Winter is sent to her grandmother’s home in Winter Haven, Maine, where the quiet coastal town hides wartime secrets, a coded carrier pigeon, and a danger that threatens her life.

After moving to the isolated town of Rockton, homicide detective Casey Duncan must unravel a new series of murders while navigating the town’s hidden dangers and harsh blizzard conditions.

Old Ms. McMartin is definitely dead. Now her crumbling Victorian mansion lies vacant. When eleven-year-old Olive and her dippy mathematician parents move in, she knows there's something odd about the place--not least the walls covered in strange antique paintings. But when Olive finds a pair of old spectacles in a dusty drawer, she discovers the most peculiar thing yet: She can travel inside these paintings to a world that's strangely quiet . . . and eerily like her own. Yet Elsewhere harbors dark secrets--and Morton, an undersized boy with an outsize temper. As she and Morton form an uneasy alliance, Olive finds herself ensnared in a plan darker and more dangerous than she could have imagined, confronting a power that wants to be rid of her by any means necessary. It's up to Olive to save the house from the dark shadows, before the lights go out for good.

Teen triplets Gretchen, Grace, and Greer—descendants of Medusa—battle hidden monsters in San Francisco, risking an abyssal plunge to protect their loved ones and their world.

Ash Larkin follows her mother to the mysterious Kansas commune Quivira, where ancient alchemy, a forbidden romance, and deadly secrets threaten their lives. She must uncover the town’s dark history before everything turns to blood and salt.

Twin sisters Ashyn and Moria, separated while saving their village’s children, must use all their powers to confront legendary foes and prevent war in their empire.

In the fragile kingdom of Javelin, sisters Ashyn and Moria must set aside old wounds to face the rising threat of the dark warlock Alvar Kitsune, with Emperor Tatsu's desperate request and the help of the enigmatic Gavril at their side.