I climbed Arete des Cosmiques on 20th of August 2002. Please note down the following :
1.After the gendarm (3.731m) you continue for a little while the ridge and then you abseil down twice. There are two abseil rings, slings etc.Each abseil is about 10 - 15 m.
2.The key passage was well equipped. There were rope ladders & sling. After the key passage you reach a bolt (there is another one above but is unscrewed), then continue 3 -4 meters right, approximately 10 meters up (the first 3/4 is an easy narrow passage)and then left.