It was the night of Harry Trucido potter's seventh birthday. Seventh birthdays were always very important in the magical community because seven was supposed to be one of the most magical numbers. They had chosen Harry's seventh birthday to do the final ritual because of the significance of the number seven, along with the fact that it was a new moon, which Oasis said would help to strengthen the magic, and make the transition easier.
The way the ritual began was by having the snake childe having a serpent rune carved into his chest by his mother basilisk. The mother basilisk would then form herself into an infinity symbol, and the child would stand on the intersection. It worked out nicely for the quartet because two supporters were also needed to chant in Latin along with the parsyltongue spoken by the snake and child.
As they finished the ritual, a bolt of blue lightening struck Harry, and he fell to the ground where he began to writhe in pain from the transformation. He grew a set of fangs that nearly glowed in the darkness, and none of the others doubted that they were poisonous. Tiny black scales formed around his eyelids, appearing almost like eyeliner. They faded out into more opalescent scales as they moved away from the center of his face. A line of harder dark green scales appeared up his spine, that disappeared into his hair the green faded some as it spread out, it reached its widest at his shoulders. The front of his calves had the hardest scale armor for extra protection. There was one last line along the outsides of his arms that grew wider as they moved downwards to fully encircle his wrists. His nails turned black, and his eyes became a darker shade of red, though his hair stayed the same. His skin also became paler – it retained a healthy almost ethereal glow, but showed no sign of the tan he had gained from years of running about without a shirt.
Oasis was pleased with the results, and curled up in such a way as to allow her humans and unconscious childe to sleep on her. It wasn't until the next day that they noticed the change in Harry's eyes. While they were already a startling green before they transformation, they were even more amazing now that it was over the green of his iris had expanded to fill almost his entire eye, and was now speckled with all sorts of other greens. The whites of his eyes had become a darker silver, and his pupils had become vertical slits. There was no doubt that he was a snake at heart.
Remus and Sirius had been afraid that Harry would be upset by the transformation, but instead he seemed ecstatic. His hearing had improved ten fold, and he no longer needed the spell to fix his eyes once a month. His reflexes had also improved, and he had discovered that he had the ability to transform into a basilisk at will.
In snake form, Harry was still small by basilisk standards – that is if you consider fifteen feet small. Harry was a black snake with a green crest, something that Oasis found unusual. Harry however thought that it was perfect as well, and couldn't be happier. The only negative thing about the transformation was the fact that Dumbledore would be very upset at seeing his golden boy turned into a snake.
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Several years later, while Harry was out back practicing the Tai Chi that Remus had taught him, an owl flew towards him. As always with all animals the owl landed several feet from him and bowed. They recognized him as the king of all creatures already, and Harry strove to learn everything so as to fulfill this role to the fullest. He removed the letter from the owl, which flew away quickly. It was addressed simply to Harry Trucido James Potter, with no other sign of address. Harry recognized the crest on the wax seal as being from Hogwarts, and rushed inside.
When Harry spoke, he always did so in a whisper, yet everyone meant to hear was always able to understand. This time was no different, "Remus? Sirius? My letter is here. When will we be shopping?"
The pair came running in. Oasis was out on a hunt, and would not be back from some time. She would be pleased when she returned. They set the date for one week before Harry was to go off to school. Oasis agreed when she returned, and Harry went out back with her to go to bed. On the way, he grabbed a small mole and gulped it down. He had discovered that with enough will power, he could kill with eye contact like a real basilisk. He had also learned that even in his more human form that he could expand his jaw to swallow larger animals. The largest he could manage in human form was a small rabbit, while he could easily eat baby pigs in his snake form.
He and oasis curled up tighter than usual that night. As much as his mother and he put on strong faces, they were really quite attached, and Harry wasn't certain that he would be able to sleep without his mother's presence.