When Virgil remarks that vampires can't cross running water and that Moska must have been destroyed, Max says "Hello, Virgil! News flash! The garlic didn't work, neither did the mirror." Virgil wasn't there when they didn't work however, and wouldn't have known that. It's kind of odd also that Virgil seemed to think nothing of Moska sprouting insect wings and spitting acid--not abilities documented in legends of classic vampires.