This is the direct line through the roof for Two Mules for Sister Sara. It is line B (orange) in the topo photo. The crux is definitely going through the roof if you finish on Two Mules.... Start in the same place as for Two Mules... but stay in the dihedral as you head up and aim for the notch in the roof. The notch (or the pass) is where Two Mules and this route rejoin. The route may be 5.11- and not 5.10+, it will take consensus to settle on the grade. You could also finish to the left anchors (two zinc plated bolts, no rings/quicklinks) via line F (green).
See the topo photo, line B (orange)
Two stainless steel top anchors with triangular quicklinks.
Where a helmet, there may still be some loose stone.