Just as Sirius had said, plans often failed to keep up with changes.
After suddenly receiving Shanna's warning, they realized that Kingsley and the others left behind to cover their retreat were in a very bad situation.
Then, in less than ten seconds, they decided to send most of their people back to reinforce them.
At the very least, they had to use the terrain to their advantage and hold the Dark wizards, who had already gathered into a force, at the stairwell. Otherwise, if the enemy broke through the blockade, they would likely meet a terrible end when caught in a pincer attack.
As for the original task of clearing out the Dark wizards on the fifth floor, they could only leave it to Albert himself. All they could do now was buy Albert enough time.
Even so, Albert had no intention of giving up on clearing the Dark wizards from the fifth floor. He knew very well that without two or three floors serving as a buffer, it would be difficult to hold back the Dark wizards' next assault.
Because of Yaxley, the Dark wizards who had rushed into the castle only to be dealt a crushing blow recovered far more quickly than they had expected.
In particular, the enraged Dark wizards joined forces and used their numerical advantage to bulldoze their way forward, causing the first and second floors of the castle to fall rapidly. Many teams suffered heavy losses, especially the Aurors who had not taken Felix Felicis; nearly half of them had fallen.
Fortunately, Albert had not been wholly unprepared. With Shanna and the House-elves' help, most teams completed their withdrawal before they were completely surrounded. They quickly formed new defensive lines, seized advantageous ground, and blocked the Dark wizards. For a while, neither side