To our immense surprise, Mrs. Forbes-Gaskell accepted the invitation with the utmost alacrity. She was profuse in her thanks, indeed; for she told us the Arms was an ill-kept house, and the cookery by no means agreed with her husband's liver. It was sweet of us to invite them; such kindness to perfect strangers was quite unexpected. She should always say that nowhere on earth had she met with so cordial or friendly a reception as at Seldon Castle. But—she accepted, unreservedly.

"It can't be Colonel Clay," I remarked to Charles. "He would never have come here. Even as David Granton, with far more reason for coming, he wouldn't put himself in our power: he preferred the security and freedom of the Cromarty Arms."

"Sey," my brother-in-law said sententiously, "you're incorrigible. You will persist in being the slave of prepossessions. He may have some good reason of his own for accepting. Wait till he shows his hand—and then, we shall understand everything."

So for the next three weeks the Forbes-Gaskells formed part of the house-party at Seldon. I must say, Charles paid them most assiduous attention. He positively neglected his other guests in order to keep close to the two new-comers. Mrs. Forbes-Gaskell noticed the fact, and commented on it. "You are really too good to us, Sir Charles," she said. "I'm afraid you allow us quite to monopolise you!"

But Charles, gallant as ever, replied with a smile, "We have you with us for so short a time, you know!" Which made Mrs. Forbes-Gaskell blush again that delicious blush of hers.

During all this time the Professor went on calmly and persistently mineralogising. "Wonderful character!" Charles said to me. "He works out his parts so well! Could anything exceed the picture he gives one of scientific ardour?" And, indeed, he was at it, morning, noon, and night. "Sooner or later," Charles observed, "something practical must come of it."

Twice, meanwhile, little episodes occurred which are well worth notice. One day I was out with the Professor on the Long Mountain, watching him hammer at the rocks, and a little bored by his performance, when, to pass the time, I asked him what a particular small water-worn stone was. He looked at it and smiled. "If there were a little more mica in it," he said, "it would be the characteristic gneiss of ice-borne boulders, hereabouts. But there isn't quite enough." And he gazed at it curiously.

"Indeed," I answered, "it doesn't come up to sample, doesn't it?"

He gave me a meaning look. "Ten per cent," he murmured in a slow, strange voice; "ten per cent is more usual."

I trembled violently. Was he bent, then, upon ruining me? "If you betray me—" I cried, and broke off.