This is what climber Hansjörg Auer wrote on his Facebook page about discovering he has to repel down using a teeny tiny rock as an anchor.
"When you're climbing solo, you realize that you got off the route but there is no option anymore to climb up or down?! By the way you have no gear except a thin rope, one ice screw, your harness, a belay device and you need your crampons and ice axes to finish the climb. Challenging!"