ing us as long-absent travellers from far over-sea. They plodded along steadily and silently, each of them thinking his own thoughts. The Mole's ran a good deal on supper, as it was pitch-dark, and it was all a strange country for him as far as he knew, and he was following obediently in the wake of the Rat, leaving the guidance entirely to him. As for the Rat, he was walking a little way ahead, as his habit was, his shoulders humped, his eyes fixed on the straight grey road in front of him; so he did not notice poor Mole when suddenly the summons reached him, and took him like an electric shock.
We others, who have long lost the more subtle of the physical senses, have not even proper terms to express an animal's inter-communications with his surroundings, living or otherwise, and have only the word 'smell,' for instance, to include the whole range of delicate thrills which murmur in the nose of the animal night and day, summoning, warning, inciting, repelling. It was one of these mysterious fairy calls from out the void that suddenly reached Mole in the darkness, making him tingle through and through with its very familiar appeal, even
