Appin had preached to absolutely incredulous hearers; Sir Wilfrid’s statement carried instant conviction. A Babel-like chorus of startled exclamation arose, amid which the scientist sat mutely enjoying the first fruit of his stupendous discovery.

In the midst of the clamour Tobermory entered the room and made his way with velvet tread and studied unconcern across to the group seated round the tea-table.

A sudden hush of awkwardness and constraint fell on the company. Somehow there seemed an element of embarrassment in addressing on equal terms a domestic cat of acknowledged dental ability.

“Will you have some milk, Tobermory?” asked Lady Blemley in a rather strained voice.

“I don’t mind if I do,” was the response, couched in a tone of even indifference. A shiver of suppressed excitement went through the listeners, and Lady Blemley might be excused for pouring out the saucerful of milk rather unsteadily.