This unexpected meeting proved a source of the liveliest interest to me, inasmuch as this old veteran of the mountains was on the point of starting on an expedition of a somewhat remarkable character. A pair of golden eagles, it appeared, had made a neighboring valley the scene of their frequent ravages and depredations among the cattle and game, and Hansel was about to organize an expedition to search for, and if possible despoil, the eyrie. Of late years these birds have become very rare. Switzerland is nearly, if not quite, cleared of them, while the Tyrol, affording greater solitude and a larger stock of game, can boast of eight or at the most ten couples. They are, as is well known, the largest and most powerful of all the birds of prey inhabiting Europe, measuring from eight to eight and a half feet in the span, and possessing terrible strength of beak, talons and wings. A full-grown golden eagle can easily carry off a young chamois, a full-grown roe or a sheep, none of them weighing less than thirty pounds; and well-attested cases have occurred of young children being thus abstracted. In the fall of 1873 a boy nearly eight years of age was carried away by one of these birds from the very door of his parents' cottage, situated not far from the celebrated Königsee, near Salzburg. [Illustration: OUR ARRIVAL AT THE DRIFT-KEEPER'S COTTAGE.] The breeding-season falls in the month of June, and in the course of the first fortnight of the succeeding month the young offspring take wing and commence their raids in quest of pillage on their own account. The eyrie or nest is an object of the greatest care with the parent birds, the site being chosen with a view to the greatest possible security, generally in some crevice on the face of a perpendicular precipice several hundred feet in height. It is built of dry sticks of wood coated on the inside with moss. Hansel informed me of a surmise that the eyrie of this pair would be discovered in the face of the terribly steep "Falknerwand;" and although I had once before been engaged in a similar exploit, I could not resist the temptation to join in this expedition, and despatched on the spot a telegram to the friend who was awaiting my arrival in Ampezzo in order to make some ascents in the Dolomites, announcing a detention of some days. This done, we re-entered the cars and proceeded a few stations farther down the line to quaint old Rattenberg, a small town on the banks of the swift Inn. Not an hour from this place the scantily-inhabited Brandenberg valley opens on the broad and sunny Innthal. The former is merely a mountain-gorge. Far up in its recesses stands a small cottage belonging to the keeper of a wood-drift, and in close proximity to this solitary habitation is a second very wild and wellnigh inaccessible ravine, the scene of the coming adventure.