"Irina Spasky doesn't smile. She doesn't show mercy. And she doesn't lose. At 16, the champion pole-vaulter was recruited by the feared Soviet intelligence agency, the KGB. Shortly after, she learned she was a Lucian and skyrocketed through the ranks to become a top agent. Her intelligence and poison fingernails were a deadly combination for her rivals on the hunt for the 39 Clues. But even scary Russian superspies have weaknesses. There's a secret in Irina's past, a painful memory throbbing beneath the frozen surface. And when faced with the choice between winning and healing old wounds, Irina will make a decision that will change the hunt forever."