Quantum Earth books in order

The Quantum Earth series by Dennis E. Taylor follows scientists who discover parallel dimensions and must deal with the consequences of crossing between them.

Reading order

# Title Published Author Buy on Amazon
1 Outland 2015 Dennis E. Taylor Buy
2 Earthside 2023 Dennis E. Taylor Buy

Dennis E. Taylor’s Quantum Earth series takes the multiverse concept and grounds it in practical science fiction. Starting with Outland, the story introduces a team of grad students who build a device that opens portals to parallel Earths, then have to figure out how to use that discovery responsibly.

The sequel, Earthside, picks up the story years later as the consequences of dimension-hopping catch up with the characters. Taylor brings his typical focus on logistics and engineering problem-solving, making the series feel grounded even when the premise stretches into wild territory.

Frequently Asked Questions

How many books are in the Quantum Earth series?

There are two books in the Quantum Earth series, published between 2015 and 2023.

What is the first book in the Quantum Earth series?

The first book in the Quantum Earth series is Outland, published in 2015.

What is the Quantum Earth series about?

The series follows a group of scientists who discover a way to travel between parallel versions of Earth. What starts as academic curiosity quickly becomes a survival challenge when they realize the alternate Earths come with their own dangers — and that not every version of reality is hospitable.

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