On the Matterhorn, Croz and Whymper tried a route via a couloir on the south-east face but were unsuccessful. Croz then had to fulfil an engagement with Charles Hudson, during which - together with T. S. Kennedy - they made the first ascent of the Moine ridge of the Aiguille Verte, whilst Whymper attempted to join forces with the Valtournenche guide Jean-Antoine Carrel. When this proved impossible (Carrel instead leading an Italian party on an attempt on the Italian ridge of the mountain), Whymper teamed up with Lord Francis Douglas and the two Zermatt guides, Peter Taugwalder father and son. Eventually this party decided to share the attempt on their common objective of the Hörnli ridge with Croz and Hudson, who had been joined by Hudson's protégé - the young, inexperienced and badly shod Douglas Hadow.