Start 10 feet right of Gabby up an obvious, left-angling crack/slab. The crack get a little steeper up at the top. It crosses Gabby and shares 2 of its bolts at the mid point, and this is the crux, too. Knapp's book calls it 5.10c, but the photo here on MP states it is 5.9. It is more like 10c than it is 5.9.