21.   Her heart sank as she realized what she had laid herself open to.

22.   As she managed to peer round it her heart sank.

23.   She looked into those eyes now and her heart sank.

24.   Her heart sank as she tried to negotiate her way between the truth and a lie.

25.   Once more her heart sank, but she shrugged disdainfully.

26.   Her heart sank as she saw Helen gazing at her in astonishment.

27.   For a moment her heart sank.

28.   And when Smith ultimately decides not to continue his college career and to remain in Brooklyn, your heart sinks.

29.   And your heart sinks.

30.   As the play goes on, however, your heart sinks.