After a close call with an assassin in Barcelona Danny is more convinced than ever that his parentsstar performers in the Mysterium circusdied under suspicious circumstances Hes also sure that theres a traitor within the Mysterium As the troupe heads to Berlin for a circus festival Danny scrambles to unravel the clues his father left behind Hell need his decoding skillsplus some extremely risky circus tricksto find out what really happened to his parents and whos still trying to sabotage the Mysterium Can he expose his parents killer before disaster strikes again