Shadow of a Doubt is a classic and excellent Tuolumne knob face climb with steep climbing on larger, kind of spread out knobs where getting from one to the next is super stimulating. Lots of great aesthetic moves.
Look for a wide crack in a short right facing corner/ramp leading to an obvious beautiful line of knobs for the start.
To the left of Mystery Achievement.
8 bolts protect this long sustained pitch with some go for it required getting started. A large cam before the first bolts could be handy.
Rappel from bolted anchor or continue a steep knobby and possibly mossy second pitch 5.9 with no protection bolts to another anchor. It maybe possible to sling a knob somewhere for additional marginal pro somewhere along the way.