The inspector Pendergast and Constance, his protege, are in search of an object "magic" and harmful, stolen in a Tibetan monastery. The thief is retouve murdered and his killer embarks on a trans-Atlantic cruise. The investigation is ongoing on board when strange events occur there, such as disappearances and murders. Descriptions of life through different characters boat is interesting: the aircrew, passengers enjoying the luxury, life casinos, conflict within the crew ... it's an original blend even if the mysterious object effects a bit "overdone" and the somewhat disappointing outcome, especially compared to other books of the same authors. It still attaches to different characters including Leseur who becomes captain without power steering ... Note some excellent passages Pendergast or spreads all his knowledge of the game and mystifies his interlocutors ...