[Name] The Ever-Locked Room (Love Chamber) [Contents] According to Dumbledore, behind that door is the most mysterious subject of study in the department: a force "that is at once more wonderful and more terrible than death, than human intelligence, than the forces of nature... It is the power held within that room that Harry possesses in such quantities and which Voldemort has none at all." In Half-Blood Prince, this power was confirmed through a dialogue between Harry and Dumbledore to be love. [Description] 
A room behind a door that remains locked at all times and which neither the "Alohomora" spell nor magical unlocking knives can unlock.