Murder at Monte Carlo by E. Phillips Oppenheim

On the way down the winding road after lunch Roger Sloane drove his Packard at almost a walking pace. The flower gatherers were at work and the drowsy air was sweet with a tangle of perfumes. After the second corner the road became little more than a gully with orange trees on either side. Women and girls and a sprinkling of older people were everywhere busy on ladders, over the tops of which they disappeared into a green-and-white obscurity. Petals were falling everywhere like snow. Roger was surprised to find that even his companion, leaning back in the car, was entranced into silence. His lips were parted, his eyes half-closed. He had the air of one travelling in Paradise. Roger contemplated him in benign approval. Notwithstanding his uncouth attire and mundane luncheon conversation, it was obvious that the joint enthusiasms of their Oxford days might easily be reawakened. He found himself speculating as to the thoughts which might be framing themselves in his friend's brain.

"Damn' good smell," the latter murmured drowsily.