Annihilation Wave!
Seeing the crumbling stone pillar, and taking into account the spell's peculiar form, Harry thought of this Ancient Magic.
This was Ancient Magic that required immensely powerful magic and a profound grasp of magic and its essence to master. Even in Ravenclaw's time, it had been an advanced spell that very few could master.
Usually, several wizards cast this spell together.
And from the few memories of Ravenclaw that Harry had obtained which were not purely knowledge, he had learned that Gryffindor and Slytherin had both been very skilled at this spell.
Remembering the statues that had lost their luster in the Chamber of Secrets, and their deduction that Voldemort must have obtained Slytherin's Legacy, Harry became completely certain that this was the spell Voldemort was using.
This spell won't be easy to deal with.
That was what Harry thought.
By now, both the Order of the Phoenix and the Ministry of Magic personnel had also realized how formidable this spell was-after all, the crumbling stone pillar was hard to miss.
But no one seemed to recognize the spell immediately.
On the Ministry's side, several wizards who were probably Aurors cast spells, attempting to block the ripples spreading toward them. But no matter what spell they used, it immediately collapsed and dissipated upon touching the ripples.
The ripples themselves did not even slow down, continuing to sweep toward everyone swiftly and steadily.
On the Order's side, Lupin and several other wizards also attempted to stop them, but their efforts were equally ineffective.
"Annihilation Wave," Sirius suddenly exclaimed.
Harry found it perfectly reasonable that Sirius could recognize this spell.
For one thing, as one of the oldest families in the United Kingdom's wizarding community, it was only natural that the Black family would have records of Ancient Magic. Admittedly,