Royal Robbins hardly needs an introduction. Ever the visionary, he was the first to climb Half Dome’s Northwest Face and the second to top out on El Cap. Basic Rockcraft and Advanced Rockcraft were two of his books that, quite literally, inspired generations of climbers. “Tis- sa-ack,” first published in Ascent in 1970 (the route was completed in 1969), takes the form of a bantering dialogue between Robbins, some friends, and his eventual partner, Don Peterson, on the first ascent of Half Dome’s “steep” side. Don’t be fooled, however—Robbins wrote the whole thing, imagining what his partners must have thought of him. This is a must-read, filled with snarky comments about being on belay duty for six hours, complaints about not bringing the right pins, and passive-aggressive comments born of frayed nerves. In this essay, you can get a personal glimpse of how Robbins viewed others, the act of climbing, and how he thought others viewed him. For these reasons, and so much more, “Tis-sa-ack” the story is as classic as the climb.