Jonathan Strange and Mr Norrell: The Red Cap

The nightcap caught Strange’s eye again. 

…Protection against enchantment…

The flute-player conjured up another wind. This one blew the King’s nightcap off.

“No matter! No matter!” cried the King cheerfully. “He promised me nightcaps a-plenty when we get to his house.”

But Strange let go of the King’s arm and staggered back through the snow and the wind the fetch it. It lay in the snow, bright scarlet among all the misty shades of white and grey.