The Secret of the Ninth Planet
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"The Secret of the Ninth Planet" by Donald A. Wollheim is a science-fiction novel published in 1959. When the Sun's light mysteriously begins to dim across Earth, threatening a new ice age, young Burl Denning discovers alien machinery in the Peruvian Andes. As calculations reveal the Sun may explode within years, Burl joins a desperate expedition aboard an experimental antigravity spaceship to hunt down similar installations throughout the solar system and confront an alien force from Pluto.
This one is part of the wider library — I haven't written a personal review for it yet. It's the same deal as every book here: a clean, complete, Kindle-ready edition for $2.97. The hand-picked shelf has the ones I've reviewed in full.
Will it work on my Kindle?
Yes — Kindle accepts EPUB directly. Email the file to your Kindle address (Send to Kindle) or drag it over USB and it shows up like any other book. The same EPUB works on Kobo, Apple Books, Google Play Books and every reading app.
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Instantly. After checkout you land on your download page, and the same link is emailed to you so you can re-download anytime, on any device.
Why is The Secret of the Ninth Planet only $2.97?
The book is in the public domain, so the story itself is free to everyone. You're paying for a carefully typeset, proofread edition that looks right on modern readers — and for the curation of picking books actually worth your time.
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