The first ice wall in the pitch ( P4 ) above the Basin did not touch the floor with brittle ice .
We climbed Epsilon Chimney for 10 metres and traversed in to the right to the ice proper from there .
The first ice wall in the pitch ( P4 ) above the Basin did not touch the floor with brittle ice , so we climbed Epsilon Chimney for 10 metres and traversed in to the right to the ice proper from there .