Conundrum Number Six

The Duke's Dilemma

"How does one address a duke?" Rose asked, looking up from the depth of her easy-chair.

"No idea," I replied. "I don't suppose we shall see anything of him."

"I only knew one," Leonard murmured reminiscently. "He was at Harrow and we used to call him Tubby."

"I don't see that that's going to help us," Rose remarked. "However——"