In a parallel-world 21st-century San Francisco where the Kaiser's Germany won World War One and went on to dominate the world, Paul Gomes and his father Lawrence are secret agents for our timeline, posing as traders from a foreign land. They run a storefront shop called Curious Notions, selling what is in our world routine consumer technology-record players, radios, cassette decks--all of which is better than anything in this world, but only by a bit. Their real job is to obtain raw materials for our timeline. Just as importantly, they must guard the secret of Crosstime Traffic--for of the millions of parallel timelines, this is one of the few advanced enough to use that secret against us. Now, however, the German occupation police are harrassing them. They want to know where they're getting their mysterious goods. Under pressure, Paul and Lawrence hint that their supplies comes from San Francisco's Chinese...setting in motion a chain of intrigues that will put the entire enterprise of Crosstime Traffic at deadly risk.

In a parallel-world 21st-century San Francisco where the Kaiser's Germany won World War One and went on to dominate the world, Paul Gomes and his father Lawrence are secret agents for our timeline, posing as traders from a foreign land. They run a storefront shop called Curious Notions, selling what is in our world routine consumer technology-record players, radios, cassette decks--all of which is better than anything in this world, but only by a bit. Their real job is to obtain raw materials for our timeline. Just as importantly, they must guard the secret of Crosstime Traffic--for of the millions of parallel timelines, this is one of the few advanced enough to use that secret against us. Now, however, the German occupation police are harassing them. They want to know where they're getting their mysterious goods. Under pressure, Paul and Lawrence hint that their supplies comes from San Francisco's Chinese...setting in motion a chain of intrigues that will put the entire enterprise of Crosstime Traffic at deadly risk. Curious Notions is the second book in Harry Turtledove's Crosstime Traffic series.

Masters of the Maze by Avram Davidson is a science fiction novel that explores the concept of a mysterious, interdimensional maze used to protect Earth from alien invaders. The story follows the protagonist, Jung Mariner, as he navigates the maze, encountering strange beings and dangers along the way. The novel combines elements of mystery, adventure, and speculative fiction, with Davidson's trademark wit and rich, imaginative world-building.

The year is 2150. Ninety percent of the world's population has been wiped out. Civilization has evolved to accommodate various cultures. In Newfoundland, a 'livyer' culture dominates. The population is a quarter of what it was and spread out over a greater area in small 'tiltons' - communities of people who live in the bush but travel out to the coast to trade. Viddy, the protagonist, has to learn to function in this new society, which takes pride in its mixed Inuit/Newfoundland heritage.