Words that aren't spoken lead to mistakes being made and one demon and one angel stare down into a basket. Angst will abound and gender fluidity is an absolute with supernatural beings.

The Ice Man ponders a traumatic event that shaped the lives of the Holmes family when he was a boy, and learns to accept a part of himself that he has long hated. Meanwhile, Sherlock must accept the new life his brother has found for him, away from Baker Street, away from John, which involves chocolate frogs, flying broomsticks and a family of gingers. Down the rabbit hole he goes.