When her brother is killed, brilliant marine architect Hannah Bryson must discover the volatile mystery behind a decommissioned Soviet submarine, Silent Thunder, that was recently purchased by the U.S. government for use as a maritime museum. Though the U.S. government tries to warn Hannah away, she'll stop at nothing to find the ruthless mastermind behind her brother's death. Even if it means joining forces with a mysterious man who may be even more...

The author of the submarine adventure Crush Depth "brings both a descriptive flair and an undeniable knowledge of undersea warfare to his series" (Publishers Weekly).
Jeffrey Fuller is going back to war.
Commander Fuller has distinguished himself in battle, becoming one of America's most inspirational heroes in its war with the Berlin-Boer Axis. Time and time again, Fuller has taken his crew of elite submariners into the...

The H.M.S. Unseen is one of the most efficient, lethal submarines ever built. But suddenly, on a training mission off the English coast, it vanishes, baffling military intelligence on both sides of the Atlantic, including National Security Adviser Admiral Arnold Morgan. A missing weapon is dangerous enough. But then the unthinkable begins to happen... Planes begin blowing up across the skies.

Searching for answers, Morgan is convinced

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In the final days of World War II, the Japanese launch two submarines carrying a new strain of a deadly virus to the west coast of the United States, but years after the subs are lost at sea, someone plots to use their deadly cargo.