Bonesaw’s talents apparently included crude plastic surgery.  If ‘crude’ was even the right word.  Every hostage wore the appearance of one of the Nine.  The group that headed towards us had three Jacks, a Siberian and a Bonesaw.  Their expressions were frozen, their eyes wide with terror.  None of them were perfect, one was too heavy in physique to be Jack, and the Bonesaw had apparently been a short-statured woman who’d had her shins and forearms sawed to a shorter length and reattached.  The resemblance was close enough that someone could mistake them for the wrong person at a glance, and that was all the Nine needed.

Wildbow, Worm, 13.8