Summary: A return to Grimmauld Place prior to Harry’s sixth year at Hogwarts places all of the inhabitants at risk from a Dark and Malevolent Force.

Quote:

But now the circle was to be broken. Harry felt a sweat break out at the back of his neck. He felt himself shudder.

Harry had never been one to believe in premonitions, but at that moment he had seen clearly that the destruction of his life and the life of wizard-kind was but a moment away.

Not only that but he had also just seen the source of that destruction.