Just 10' to 12' to the right of Sail Away there is an obvious jamcrack and corner that ascends 40' or so to the shoulder of the hidden tower. This route does not top out on the summit, which is to the climber's left.
Although this is not a total waste of time (bomb) the route is rather unsatisfying and has some crumbing, gritty rock.
Overall, it's best only if done as something to bide your time as you wait for the party ahead of you to clear the Wild Wind or Sail Away routes.
A few cams from hand-sized to large.
View from the Wailing Wall.