Mary Jane Irving

A charming and very daring thief known as Arsene Lupin is terrorizing the wealthy of Paris. He even goes so far as to threaten the Mona Lisa. But the police, led by the great Guerchard, think they know Arsene Lupin's identity, and they have a secret weapon to catch him.

When Gawne finds his brother dying and hears that the killer has run off with his brother's wife, he swears revenge.

Young Sandra De Hault arrives by ship in Sacramento, California, during the 1849 Gold Rush. While on board she adopted three children whose mother had died during the voyage. While in Sacramento she is saved from the attentions of a violent drunk by Stanton Holliday, an agent for eastern banker John Grey. They fall for each other, but Sandra believes that the daughter of Halliday's boss is in love with him, and not wanting to hurt his career she leaves town.

High school students led by the Girl and Boy turn from Christianity toward secret atheistic meetings. When a girl is accidentally killed by a stairway collapse, the Girl and Boy go to reform school where they are treated brutally.

Wealthy wastrel Neil Sparks devotes more attention to the pursuit of pleasure than to his inherited oil business. Neil's neglect allows two schemers, Craig and Abbott, to siphon the Sparks' Texas oil through the construction of an illegal pipeline. Upon receiving notification that his wells are running dry, and in an attempt to rid himself of the unwelcome attentions of his mercenary fiancée, Bess Kinloch, Neil ventures West to investigate, using an assumed name. Discovering the theft, Neil sends for his butler, and the two of them force the crooks to buy a parcel of land and deed the property to Myrtle Pratt, whose father had been swindled and murdered by the scoundrels. Justice served, Neil returns East to be followed by Myrtle and her five brothers, who arrive during his engagement party to Bess. Neil shocks his guests by announcing that the children are his, and he and Myrtle wed.

Neysa von Igel, who is living with her supposed grandfather, Adolph Schmidt, loves America, although she believes herself to be German-born. Unknown to Neysa, when she was three years old, her father and mother, both American-born, were killed in Germany by Emil Koenig, who, in punishment, was sent to the United States to work in the interest of the government of the Fatherland, and who is now associated with Schmidt in his manufacturing enterprise. Koenig demands that Neysa work in behalf of Germany. She revolts and escapes to the home of David Hale, who had been her grandfather's attorney, but who is now in the service of the United States Government. Hale and Neysa are married and depart for France, where the girl again encounters Koenig, and, after many thrilling adventures, she kills him in self-defense.

A chorus girl gets bad advice from her fellow chorines in handling a rich suitor who assumes she is a gold digger.

North-West Mounted Police Sgt. David Carrigan takes a breather from fighting as he brings a convict to trial and woos the lovely Jeanne-Marie.