It was a tall, slender glass vessel, reaching as high as his knee and divided into a few chambers. Into one he poured some water. Then he fiddled with a live coal and a bit of silver paper and a small greenish-brown brick of some substance I did not recognise. There was a tube attached to the vessel ending in a carved mouthpiece. Brisbane put his mouth to it and drew in a breath. He did this a few more times, and after a moment I could detect a heavy, sweetish smell, very unlike his usual tobacco. “I know what that is!” I cried suddenly. “It is a hookah!”