ϟ 117) Salazar Slytherin may have built the Chamber of Secrets, but the other founders had their own hideaways as well. Helga built the Room of Requirement to help anyone in need. Godric built the underground chambers (which would house the Philosopher’s Stone) so his students could test their mettle against unknown challenges. And as for Rowena… well no one’s found her chamber. She was too clever in hiding it.