Adam did not know Parseltongue. He could have Harry say it once and then imitate it with the Voice Card, but that would have been a little too deliberate. Not to mention, the Parseltongue phrase for opening the Chamber of Secrets practically screamed that it was connected to the chamber.
So he would use the Clow Cards' own method instead...
The Pull Card depicted a woman in ancient Chinese clothing passing through a circular plane. Its magic allowed someone to temporarily lose physical form and pass through tangible obstacles, such as walls.
Using the Pull Card, Adam easily entered the Chamber of Secrets' pipes. The stench of rotting corpses permeated the passage, and Adam found it hard to breathe almost the moment he landed.
"Ugh—blegh!"
He hurriedly summoned his wand and cast a Bubblehead Charm over his head. Only then did Adam finally take several deep breaths.
"This basilisk really has no sense of hygiene... I'll have to brush its teeth and give it a bath later."
Adam stretched out his hand, and specks of light flew from his palm. That was the Light Card's magic, illuminating the dark pipe. Bones littered the passage, almost all of them seemingly from rats. There were also some slightly larger bones, but they were too fragmented to identify the animals they had belonged to.
The basilisk had survived for a thousand years just by eating these? Maybe there had also been insects like cockroaches that did not leave behind bones, and that was enough for it to grow this large...
Tsk, how pitiful. It had lived for a thousand years without ever having a proper meal.
There were messy tracks among the bones, likely left by the basilisk as it passed through. Adam also found dozens of shed basilisk skins.
"This is good