Suddenly, without giving warning, he dived; but the Rat was on the alert, and promptly followed him down the tunnel to which his unerring nose had faithfully led him.

It was close and airless, and the earthy smell was strong, and it seemed a long time to Rat ere the passage ended and he could stand erect and stretch and shake himself. The Mole struck a match, and by its light the Rat saw that they were standing in an open space, neatly swept and sanded underfoot, and directly facing them was Mole’s little front door, with “Mole End” painted, in Gothic lettering, over the bellpull at the side.