21.   The discovery further unlocks the mystery behind the molecular archaeology of cancer, detailing the hidden sequence of events that turn a normal cell into an aggressive invader.

22.   Then began the painstaking work of trying to figure out the language and script and comparing fragments with known texts to unlock their mystery.

23.   Physicists hope string theory will unlock the mysteries of black holes and the origins of the universe.

24.   Amid the rubble of Oklahoma, scientists hope to find clues to unlock the mysteries of deadly tornadoes.

25.   An encounter with a Hungarian-speaking Russian unlocked the mystery.

26.   For years, no one knew who he was until an encounter with a Hungarian-speaking Russian unlocked the mystery.

27.   Instructor Sarnsern Gajaseni enthusiastically conducts the four-day course, unlocking the mysteries of Thai cookery.

28.   Only a chance encounter with a Hungarian-speaking Slovak doctor began to unlock the mystery.

29.   Researchers believe they have unlocked the mystery of how an antioxidant found in grapes and red wine fights cancer.

30.   Scientists isolate a gene that could unlock the mysteries of cancer.