Edison Marshall

Einar and Eric are two Viking half-brothers. The former is a great warrior whilst the other is an ex-slave, but neither knows the true identity of the other (imdb)

Cheated out of his estate by his sadistic uncle, young Benjamin Blake goes to the South Seas to make his fortune so he can return to claim his birthright. (imdb)

Jean-Paul rebels against his bondage to his uncle, the Marquis de St. Malo, and journeys to the far-off Mayan hills of Guatemala seeking a hidden treasure. He is the rightful heir to his uncle's title and lands, and goes to Guatemala to win his fortune and come back and claim his heritage. (imdb)

Salem, Massachusetts, 1800. Mountaineer Jason Starbuck rides into town with furs to sell and dreams to fulfill. He falls in love with Roxana, who breaks her previous engagement and leaves for France to await Jason. Roxana's ship is attacked by pirates and she is sold into slavery in Morocco. Jason follows her to Morocco and must win the support of the sultan in order to continue his efforts to locate and rescue her. (imdb)

Five people are stranded on an island off the coast of Alaska. The poor girl, Bess Gilbert, competes with the rich girl, Lenor Harderworth, for the attentions of the heroic Ned Cornet. A snow-slide resolves a few issues. (imdb)