Louis Joseph Vance

Spies from Japan conspire to steal the Channing "preparedness" fortune and invade the United States, beginning in New York, then allying themselves with Mexicans across the border. They are stopped by the efforts of munitions factory heiress Patria Channing and U.S. Secret Service agent Donald Parr.

A baby, found strapped to a donkey in the North Carolina mountains where her father drowned, is called Twilight and raised by the Anwells. At sixteen, Twilight, in love with her foster brother Jim, who runs the family's lumber business, grows jealous when Elise Charmant, vacationing with her father, a brain specialist, monopolizes Jim at the Fireman's Ball.

On an ocean liner returning to America, Alison Landis, an actress, avoids paying duty on a valuable pearl necklace by hiding it in the lining of a hat which she sends to Benjamin Staff, a playwright. The necklace is being trailed by a crook who is related to another passenger, Eleanor Searle, who also has a striped hatbox similar to the one recovered by the unsuspecting playwright. The crook bears an uncanny resemblance to Eleanor's father. The two bandboxes are inadvertently switched at the dock.

Ex-thief Lone Wolf and his valet don turbans to solve a museum jewel theft.

Michael Lanyard's faithful butler Jamison is mistaken for his boss by a gang of jewel robbers.

Short film lost. Based on the novel, The Day of Days. by Louis Joseph Vance

Once a jewel thief always a jewel thief? Yes and no. Yes if you consider the fact that Michael Lanyard also known as the Lone Wolf once retired from the "trade" but relapses back into his old habits when he is tempted by the emerald pendant of beautiful socialite Marcia Stewart. The trouble (?) is that he falls for the belle and he soon gets more interested in getting the girl than the jewels that adorn her. What he wants now is to return the pendant but a rival gang interfere and force him to take part in a big-time caper.

Modest picture centering on a blunderous jewel heist aboard an ocean liner.

A newspaper man, and former jewel thief, is accused of gem theft.

Complicated plot involving missing stamp collection and kidnapped businessman, with the Lone Wolf keeping one step ahead of the police in Havana trying to solve the crime and make a profit.

The Secret Kingdom is a 1917 silent action movie serial comprised of 15 chapters: 1. Land of the Intrigue 2. Royalty at Red Wing 3. Sealed Packet 4. Honorable Mr. Oxenham 5. Carriage Call #101 6. Human Flotsam 7. Ghost Ship 8. Rum Cay 9. Swamp Adder 10. A Goat Without Horns 11. The White Witch 12. The Shark's Nest 13. The Tragic Masque 14. The Portrait of a King 15. The Tocsin.

Hugh Whittaker believes he is terminally ill, and, as an act of mercy, weds a young woman named Mary, who has been deserted by her lover. He travels to Europe, recovers his health, and returns to New York City, where he meets and falls in love with musical star Sara Law, unaware that she is actually his wife. Sara is abducted by kidnappers and Hugh undertakes a harrowing rescue before discovering her true identity.

A hardworking secretary for a rich woman finds herself engaged to the woman's son and accused of a murder she didn't commit.

Richard Lane isolates himself in the African interior for 5 years after his sweetheart, Natalie, marries Norman Travers. Travers, who tires of family life and neglects his wife and son, drifts into an affair with Nita Howard, a cabaret dancer. When Travers' ship is reported lost inward from Europe, Lane hears the news and determines to return and win Natalie; soon Lane develops a fondness for Natalie and her child, Bobby, and she consents to marry him. Travers, however, is rescued from a desert island and refuses to grant Natalie a divorce. Lane finds Travers murdered; and thinking that Natalie is guilty, he surrenders himself to the police. She denies his guilt, but the chief of detectives discovers that Nita Howard is the murderess. Lane is happily united with Natalie.

During World War I, a professional thief known as The Lone Wolf is assigned to steal a cylinder with important information from behind the German lines and bring it to Allied intelligence headquarters. However, German agents set out to stop him, headed by the man who was responsible for the death of the thief's sister.

Spies force former jewel thief Michael Lanyard to steal defense secrets in Washington.

Michael Lanyard, aka the Lone Wolf, is sailing to America when he meets pretty Eve de Montalais. Eve wants to sneak her valuable necklace through U.S. customs so that she can use the money from its sale to help straighten out her brother. The only problem is that there is a gang of jewel thieves on board who are just as determined to steal the necklace.

Michael Lanyard, a reformed cracks-man, adopts Adrienne, the daughter of an old friend, and goes to Southampton to attend a party celebrating her engagement to Bobby Crenshaw, the son of a wealthy society couple. The Count and Countess Polinac, international jewel thieves, also attend the party, and Count Polinac forces Lanyard to open the safe containing the jewelry of the guests by threatening to expose Lanyard's criminal past. Lanyard forestalls the count, however, and protects the valuables. The count and countess are arrested, and Michael's secret is kept safe.

The Lone Wolf tracks down Nazi spies in London during the German bombing.

In the 1850s, a young prince in India promises his dying father he will lead a revolt against the English colonial masters of India. However, since he is half-European himself, he can't bring himself to do it and flees to America, to live in obscurity. He finds, however, that he can't outrun his obligations

A silent film Directed by Stanner E.V. Taylor.

A reformed jewel thief fights to clear his name when he's framed for murder.

The Lone Wolf, an international thief who is expert in dodging the police, is rifling a wall safe when he senses the approach of detectives. Secreting a necklace in a cigarette case, he makes a hasty retreat. In disguise, he climbs to the balcony of another house where a bal masque is in progress and conceals himself in Marcia Mayfair's boudoir. Later he mingles with the guests and dances with Marcia. Lanyard is disclosed as a stranger when detectives force the guests to unmask, but Marcia remains silent while Lanyard replaces the jewels lifted from her bedroom. Lanyard is warned by Detective Crane, who suspects him but has no evidence. A visit to a bohemian resort owned by Morphew, leader of a band of thieves, provokes a heated argument in which Lanyard is threatened; and Marcia and Lanyard barely escape being caught in a raid. Their romance is threatened when Marcia's jewels are again stolen, but Lanyard traps Morphew and his gang and brings them to justice.

At a London auction, Princess Sonia bids against her husband, exiled Prince Victor, for a Corot landscape in which incriminating letters Sonia wrote are hidden, but it is bought by Michael Lanyard, suspected of being the mysterious, international thief "The Lone Wolf." After Lanyard gives Sonia the letters, she divorces Victor, marries Lanyard and dies after bearing their daughter Sonia. Years later, Sonia, who thinks she is the daughter of the Princess' maid, is found by Victor, now the leader of an underworld gang of Oriental crooks and Bolsheviks. Saying he is her father, Victor brings her to his home, hoping to entice Lanyard to make an appearance.