13 The Hour Unseen » by 30CK
There is a Darkness at Hogwarts, one hidden there for a millenia. A blue wave of energy in Harry's 2nd year unleashes it, and he and six other students must use the secret 25th hour of the day to overcome both the Darkness and the Basilisk that hides it.
T, English, Supernatural & Adventure, chapters: 6, words: 32k+, favs: 15, follows: 21, updated: 5/12/2012 published: 9/5/2010