remodelerJK

I am remodeling a bathroom. The main bathrooms wall heights are 8' but on the exterior wall the height is only 74.5" with an angle that only goes into the bathroom 28" so the exterior wall of the bathroom has a triangle cut out of it. I am stumped at how I can get this in if I try a pony wall the angle goes across to the other side of the bathroom instead of just 28" in. All assistance is deeply appreciated.