Neville's face went blank, he had gone through the theories so precisely but he did not think about the ingredients involved and their individual cost. "I have some saved up in Gringotts," he mentioned thinking himself silly considering where he was, "it should be sufficient in acquiring the necessary ingredients. Shall I draft a letter to McGonagall and gain the proper permission to investigate the late Professor's stores to see what we are working with first?"
He knew some of the ingredients were quite rare and was hoping that Snape would have at least some of them stored meticulously in his cupboards at Hogwarts.
"When is the soonest you would be able to travel?" Neville asked realizing he didn't know how things at St. Mungos had been since he left.