Pomona and Severus returned to the courtyard they had just left, searching by the streetlamps' light for an entrance leading downward.
Judging from the ruins that remained, it had once been a beautiful place, very much in Ravenclaw's style.
Like a groundskeeper, Pomona used "Whirlwind Sweep" to clear away the dead branches and rotting leaves. They had nearly turned to ash; once the gale struck them, they truly became ash, as though they had lain here for thousands upon thousands of years.
The Slytherin common room truly existed beneath the lake, and Sirius's Marauder's Map could show it.
The Ouroboros was a self-sustaining closed system. In ancient times, it carried the meanings of self-destruction and cycles. Suppose the entrance to the Slytherin Common Room was concealed behind a layer of false bricks. That silver snake would destroy and break down those bricks; once people had passed through, it would reassemble them. The door remained unchanged and was never hidden. The wall bricks constantly shifted between destruction and "rebirth," forming a cycle. It was not a spatial passage.
Pomona glanced toward the other end of the courtyard. Severus had his back to her, but she felt that even if he turned around, she still would not be able to tell what he was thinking.
In some respects, he truly was a learned genius. For instance, the flying spell he had taught the Death Eaters still had not been cracked by any "non-members."
When Nestor told Telemachus that he was uncertain whether Odysseus was alive, Telemachus did not seem particularly anxious. He even believed that Odysseus was already dead. "He can no longer return; the immortal gods have prepared death and a dark ending for him."
Telemachus and Odysseus had little emotional bond. Odysseus had gone to Troy shortly after Telemachus was