Suddenly Dr. Carter clutched Penny's arm and gave a tremendous sniff. "There!" he cried. "D'you smell it? That's the smell of peat! It was always just there, at that cottage, that we got the first whiff of peat!" Penny glanced round the bus in embarrassment, wondering what the other passengers would be thinking of this eccentric man. But nobody, fortunately, so much as glanced at him.
From PENNY FOOLISH, when Penny and her father arrive on Arran.