Had I left some clue behind, a stray sock not his, an unfamiliar scent on the pillow?

Arthur's head turned slightly, like a hound's that catches an unfamiliar scent.

It was the scent of man, yet strange and unfamiliar to a degree.

The night air was warm and full of unfamiliar scents.

An unfamiliar scent reached him, a curious mixture of flowers and spice.

But here, with the crowds of people, the scents and sights so unfamiliar to her senses, she was unsure.

The air had an unfamiliar scent here, something a little spicier than he smelled in Wisconsin.

Gerbils are known to attack and often kill those carrying an unfamiliar scent.

The gardener turned his head, as if, like a deer, he had caught a whiff of an unfamiliar scent.

A rich, unfamiliar scent comes to him from the earth.