Angelina saw Penny go flying and apparated to the other side of the beast, running into the store. She had enough basic training to stop bleeding until a healer could properly remove the glass and she hurried to break off the pieces of glass, leaving them inside Penny and sealing the wounds around the shards. That would make a mess for healers, but at least Penny wouldn't bleed out.
Angelina shot up a shield charm as the monster pounded its feet into the wall, shaking debris down on them. She grabbed Penny around the middle and threw her over her shoulder, feeling shards of the glass cut her own shoulder. "Shit," she grunted. She apparated to St. Mungo's, setting Penny down on the floor and covering her own bloody shoulder.