Books like Thief of Shadows by Elizabeth Hoyt

After a fall from society, the Marquess of Bourne becomes a ruthless gambling king in London, determined to reclaim his inheritance by marrying Lady Penelope Marbury, who seeks adventure beyond an arranged marriage.

A young widow seeks the truth about the enigmatic Lord Ian Mackenzie, a Scotsman rumored to be mad and possibly murderous, in a tale of passion and intrigue set in historic England.

A clever and dangerous spy romance, where the Byron brothers' code battles the French secret agent who wants to be a man and woman’s love, while also saving his family and breaking into the most powerful codes of the time.

Lady Phoebe Batten, a blind aristocrat under threat, finds both danger and unexpected tenderness when her stoic bodyguard, Captain James Trevillion, defends her against kidnappers.

A mysterious burglar and a wealthy woman's tragic love story spanning centuries of art and passion in the Cote d’Azur, set against the backdrop of historical grandeur and crime. Jules Habsburg, a blackmailed wife, uncovers the Panther, a notorious cat burglar, and realizes her heart is in the arms of a man without identity, leading her on a dangerous journey into forbidden love and betrayal. Dark romance, historical romance, and art enthusiasts will find this story both captivating and hauntingly beautiful, with secrets and betrayals that keep readers guessing.

A MAN CONTROLLED BY HIS DESIRES . . . Infamous for his wild, sensual needs, Lazarus Huntington, Lord Caire, is searching for a savage killer in St. Giles, London's most notorious slum. Widowed Temperance Dews knows St. Giles like the back of her hand-she's spent a lifetime caring for its inhabitants at the foundling home her family established. Now that home is at risk . . . A WOMAN HAUNTED BY HER PAST . . . Caire makes a simple offer-in return for Temperance's help navigating the perilous alleys of St. Giles, he will introduce her to London's high society so that she can find a benefactor for the home. But Temperance may not be the innocent she seems, and what begins as cold calculation soon falls prey to a passion that neither can control-one that may well destroy them both. A BARGAIN NEITHER COULD REFUSE

When a masked vigilante hunts killers in 18th‑century London, he meets a fierce heroine who shares his quest for justice. Their dangerous bond sparks both vengeance and romance, threatening the duke’s secrets.

A captivating tale of love, danger, and the rugged American West, set against the backdrop of Santa Fe in the late 19th century.

A daring Irish spy in Victorian London, a charismatic rogue, and a passionate love affair in the Regency era collide in Katherine O'Neal's latest historical romance adventure, perfect for fans of Regency romances and Victorian spionage alike.

Alf pretends to be a boy and patrols London’s streets as the masked Ghost of St. Giles. After saving Duke Hugh Fitzroy of Kyle, she is hired to hunt the dangerous Lords of Chaos, forcing her to reveal her true identity.

A cunning duke returns from exile, hunting the men who wronged him, while a determined housekeeper infiltrates his house to protect her mother. Their game of secrets and seduction threatens both of their lives and reputations.

Christina Wentworth-Gibbons's tumultuous past meets Oscar Wilde's Brighton Bandit in this captivating historical romance series by Katherine O'Neal.

A thrilling historical romance about a mercurial mercenary and the beautiful Miriam Toulon, a gifted physician who nurses him back to health but is drawn to the dark stranger he has become in love with, leading Rigo Torres on a dangerous journey to reclaim his family’s inheritance and protect his father’s betrayal of his brother and Taino tribe from a cunning enemy known as ‘The Fox’.

A man falsely accused of murder escapes to a garden overrun with violence, where he's drawn to a woman struggling to make it as a theatrical performer. When their paths cross, they find themselves caught in a dangerous game of survival and passion.

A historical romance featuring two Blackthorne brothers and their political beliefs in the Revolutionary War, with themes of love, adventure, and politics.

A tarot‑reading Kate Malone steals a priceless emerald and attracts a mysterious stranger, uncovering psychic powers and a deadly stake involving vampires and jewel thieves.

Jill Kennedy quits the police after mistakenly profiling a serial killer and retreats to the village of Kelton Bridge to write self‑help books. A mysterious threat forces her to confront the case that cost a man his life.