1.   Instinctively she clenched her fingers, but not before she was sure he had seen the white mark etched against her tan.

2.   Virginia clenched her fingers tighter round the bedcover, her heart hammering against her ribs in panic.

3.   Harry ran and caught him by the arm, clenching his fingers desperately into the folds of the wide velvet sleeve.

4.   With a violent movement he clenched his fingers hard on the knife and pared the flower cruelly out of the block like a blemish from an apple.

5.   Kulovac clenched his fingers as he told his gruesome tale.