Jack frowned as he fell into his chair.

Jack frowned, for this was no way to address a captain on his own quarter-deck.

Jack frowned, and raising his voice to its usual pitch called 'Killick.

Jack frowned, taking the opportunity to leave it behind.

Jack frowned at the amount of hair that came off in his brush.

Jack frowned, inhaling the familiar scent and looking around.

Jack had sprawled back in his chair and was frowning at the ceiling.

Jack frowned and looked directly into the camera.

Jack frowned, and turned the paper to look at the report.

Jack frowned, rubbing his hands, as though he was feeling the cold.