Upon my life, I will.

Across the centuries, every Guardian who has protected one of the twelve relics of the Copernicus legacy has taken this vow. But never have the consequences of the promise been more profound. The secret network of the great astronomer's spies is the target of an assassination plot, led by the despicable Galina Krause. And now the Kaplans are more alone than ever before as they race from France to Antarctica against a deadly ticking clock.

There is not much time left for Wade, Darrell, Lily, and Becca to find the remaining relics and defeat their enemies. But are they willing to risk the life of one of their own in order to save the world?

A mile-a-minute thrill ride with surprises that will have readers holding their breath until the very end, The Crown of Fire is the last book in bestselling author Tony Abbott's Copernicus Legacy series.

Tony Abbott is the author of over a hundred books for young readers, including the bestseling series the Secrets of Droon and the Copernicus Legacy and the novels Firegirl and The Summer of Owen Todd. Tony has worked in libraries, in bookstores, and in a publishing company and has taught creative writing. He has two grown daughters and lives in Connecticut with his wife and two dogs. You can visit him online at www.tonyabottbooks.com.