Ron opens the door ( despite not speaking Parseltongue ) by imitating sounds he heard Harry use to open Slytherin 's locket .
In Deathly Hallows , Ron and Hermione enter the Chamber .
Ron opens the door ( despite not speaking Parseltongue ) by imitating sounds Ron heard Harry use to open Slytherin 's locket .
In Deathly Hallows , Ron and Hermione enter the Chamber .