Twisted Sister and Big Brother share the same approach. From the river climb up a snow cone on the left side of an overhanging rock wall. Then traverse right on exposed frozen terrain to the bottom of the blue ice. From here you rappel the the bottom of the objective. Twisted Sister is the prominent left pillar.
This route is located a couple hundred yards beyond the bride up on the right side of the canyon.
Place ice screws and lead to an alder finish or rap off V threads.