The Thoughts of Angels (гет)

"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. The protectors of orphans and lost children. It's made of their thoughts turned dense, like the frozen tears of regret..."
The Veil of Death is a time travel device. AU after the OoTP that will follow until the end of the Deathly Hallows and a bit beyond. Many character many chapter ongoing story with not such a bad plot, or so I hope.
Updated and clarified in January 2016