Bonington, Chris. THE ULTIMATE CHALLENGE. Stein & Day, New York, 1973, First American Edition. 352 pp, 7 maps and line drawings, 56 colour and B&W photographs. Strong British team led by Chris Bonington included Doug Scott and Dougal Haston in the autumn of 1972. Cutting manpower and equipment to a minimum, their attempt on unclimbed route showed advances in lightweight tactics over siege expeditions. Although they didn't make the summit, it was considered a triumph in technique and spirit. Loosely inserted is the Expedition Postcard, Signed by ten members, including Chris Bonington, Doug Scott, Mick Burke, Dougal Haston and six others. DJ, VG+.