21.   They guaranteed Houston all their city could offer, except the key to unlock the secret of star power he was beginning to harness in Detroit.

22.   They will return this summer to resume unlocking the secrets of Ox Bel Ha.

23.   Unlocking the secrets to Ashley continues to be another tough puzzle for the Dodgers.

24.   We were up late one night last week at the farm in Maryland, trying to unlock the secrets of amaranth grain, the ancient Aztec crop.

25.   Wednesday night, Camby seemed to finally unlock the secret of playing Robinson.

26.   When he became one of the first Nieman fellows at Harvard University, one course he selected was accounting, because accounting helped unlock the secrets of the budget.

27.   A major deep drilling project has begun in Antarctica to unlock the secrets of global climate change going back millions of years, organizers said Thursday.

28.   It is unlocking the secrets of life, how cells turn on and off.

29.   Keeping Soviet spies from unlocking the secrets of the Skunk Works was paramount.

30.   Scientists are working at a former Navy base to unlock the secrets of the first sub to sink an enemy warship and so close a chapter in naval history.