There was a bit of arguing in Greek between the two men after Harry asked how long it would take. Evidently it would not be a quick process, as there was no one currently alive that knew how to navigate the spell work that sealed the cave system. Hermione decided that she disliked both men when their parting words to Harry were "In town, we have a contact, Bacchus. He does great work, but I would meet with him soon, as it sounds like you may need quite a few headstones." 