The Thoughts of Angels

"They say that the Veil of Death is made from the liquid thoughts of angels. Not just any angels, the guardian angels, who failed to protect their charges..." Mentions of past abuse. Veil of Death is a time traveling device. AU after the OoTP that will follow until the end of the Deathly Hallows and a bit beyond. Also Bellatrix/Charlie Weasley. Many characters. Not a bad plot.