Some discoveries are worth dying to protect-and worth killing to steal.

Deep in the catacombs beneath Rome, archaeologist Dr. Jonathan Hale and his brilliant assistant Eliza Sommers uncover something that shouldn't exist: the lost manuscript of Nicolas Flamel, legendary alchemist and supposed keeper of the true secret to the Philosopher's Stone. Before they can even process what they've found, they're running for their lives-because they aren't the only ones who know the manuscript is real, and the Order that has guarded its secrets for centuries will stop at nothing to get it back.

With the help of a codebreaker friend and a growing circle of allies, Jonathan and Eliza race across Europe, decoding ciphers, chasing clues hidden in Flamel's own hand, and staying one step ahead of an enemy who always seems to be one step ahead, always watching from the shadows. What starts as an academic thrill becomes a fight for survival-and a reckoning with just how far they're willing to go, and what they're willing to lose, to keep the alchemists' final secret out of the wrong hands.

By the time the truth is finally uncovered, Jonathan and Eliza will have paid a price they never imagined-and learned that some legacies are too dangerous for anyone to hold onto for long.

The Last Secret of Flamel is a fast-moving adventure of ancient conspiracies, deadly pursuits, and the price of forbidden knowledge-for readers who love their history laced with real danger and secrets worth killing for.