Free: The Obsidian Chamber

The Obsidian Chamber
While Sam Reilly is on a mission to locate the long-lost shipwreck of legendary explorer Ernest Shackleton, a strange code begins to circulate on the internet. It purports to have the answers to some of the world’s most complex engineering and algorithmic problems.

The US government’s brightest minds are racing to be the first to break what has the potential to be the most powerful code on Earth. Free on Kindle.
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