"IF it works?" He asked acerbically. Hermione looked impassively back at him. He sighed and rolled up his sleeve. Severus spread the glutinous potion onto the skull and snake. He uncorked the pus with a flick of his thumb and poured it gloopily over the black salve. It immediately hissed and seethed. Hermione could see something moving as the pus and potion frothed and sputtered. Severus clutched his elbow, unable to hold back shouts of pain. The potion combined fully with the pus, making it oily. The new mixture slid from the arm and dripped onto the floor. 