Pursuing their northeast course, they reached the Peters Glacier (which Doctor Cook calls the Hanna Glacier) and stumbled across one of Judge Wickersham's camps of a couple of months before. Here another attempt to ascend was made, only to find progress stopped by the same stupendous cliffs that had turned back the Wickersham party. "Over the glacier which comes from the gap between the eastern and western peaks" (the North and South Peaks as we speak of them), says Doctor Cook, "there was a promising route." That is, indeed, part of the only route, but it can be reached only by the Muldrow Glacier. "The walls of the main mountain rise out of the Hanna (Peters) Glacier," Cook adds. The "main mountain" has many walls; the walls by which the summit alone may be reached rise out of the Muldrow Glacier, a circumstance that was not to be discovered for some years yet. The lateness of the season now compelled immediate return. Passing still along the face of the range in the same direction, the party crossed the terminal moraine of the Muldrow Glacier without recognizing that it affords the only highway to the heart of the great mountain and recrossed the range by an ice-covered pass to the waters of the Chulitna River, down which they rafted after abandoning their horses. Doctor Cook calls this pass "Harper Pass," and the name should stand, for Cook was probably the first man ever to use it. [Sidenote: Robert Dunn] The chief result of this expedition, besides the exploration of about one hundred miles of unknown country, was the publication by Robert Dunn of an extraordinary narrative in several consecutive numbers of _Outing_, afterward republished in book form, with some modifications, as "The Shameless Diary of an Explorer," a vivid but unpleasant production, for which every squabble and jealousy of the party furnishes literary material. The book has a curious, undeniable power, despite its brutal frankness and its striving after "the poor renown of being smart," and it may live. One is thankful, however, that it is unique in the literature of travel. [Sidenote: Cook's Second Attempt] Three years later Doctor Cook organized an expedition for a second attempt upon the mountain. In May, 1906, accompanied by Professor Herschel Parker, Mr. Belmore Browne, a topographer named Porter, who made some valuable maps, and packers, the party landed at the head of Cook's Inlet and penetrated by motor-boat and by pack-train into the Sushitna country, south of the range. Failing to cross the range at the head of the Yentna, they spent some time in explorations along the Kahilitna River, and, finding no avenue of approach to the heights of the mountain, the party returned to Cook's Inlet and broke up.