But adrenaline made her heart hammer, and she crouched in the deepest corner of the chamber.

There was a terrible thud and a high shrieking sound that made my heart hammer even harder.

He wanted to-but sudden fear chilled him, made his heart hammer.

No, he wanted to answer, fear making his heart hammer, this is the first time.

The cold sapped his strength and made his heart hammer madly.

I stood silent, listening to my heart hammer.

A voice which made my heart hammer said in my ear: "Lenchen!"

They are the episodes that send chills through parents everywhere and make the heart hammer.

It wasn't a normal night noise, and it had made his heart hammer before he'd worked it out.