Delphi Nation (Delphi in Space Book 4)

Name: Delphi Nation (Delphi in Space Book 4)
Price: 3.99 USD
Availability: InStock
Rating: 4.5 (4953 reviews)
Author: Blanton, Bob

by Blanton, Bob

Science Fiction Science Fiction Fantasy

4.5 (4,953)

4.5 stars from 4,953 reviews. Top 50% of Science Fiction books we track.

254 pages~4.2 hr readPublished by self-published

$3.99At peak price

Last checked: Apr 24, 2026

Price history: $3.99 – $3.99

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Price range: $3.99 – $3.99

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Perfect for you if...

You enjoy hard sci-fi that explores realistic geopolitical consequences alongside technical innovation.
You're invested in series where character development and world-building compound across multiple books.
You like stories where ordinary people (families, not militaries) drive transformative historical change.

Maybe not for you if...

You prefer standalone novels and don't want to commit to a four-book series.
You're looking for action-heavy space opera with battles and alien encounters as the main draw.
You want literary complexity and unreliable narrators rather than straightforward, plot-driven storytelling.

About this book

Delphi Nation is the fourth book in the Delphi in Space science fiction series. The McCormacks have been working quietly to advance Earth's status as a spacefaring civilization without triggering global conflict over access to the technology. However, their efforts to build a space station—including launching materials, designing new shuttles, and harvesting asteroids—make secrecy impossible. They decide to go public. The story follows how Earth's nations respond to the revelation of this advanced technology and the strategic advantage that space superiority provides.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$3.99 – $3.99

Price has been stable at $3.99 for 6 years. This book rarely goes on sale.

Sales Rank

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Currently around #194K in the Kindle store — a niche title. Sales have softened 175% recently.

Rating & Reviews

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Currently 4.5★ from 4,953 reviews

Review activity has been quiet recently. Rating has remained stable at 4.5 over the tracking period.

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Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.