Disclaimer: I own nothing of the Harry Potter universe!
Sabrina heard her son calling and found him in the back with the snake. "Oh my, a boomslang!" Harry's face was flushed with excitement, his fingers practically twitching. "Mum, I want to hold him! Can you get him out? I'm going to call him Hunter." The shopkeeper had followed and immediately interceded. "Just a moment, young man, I'll get him." He shot Sabrina an uneasy look. "Begging your pardon but are you are sure, Madame? Boomslangs can be... unpredictable." Sabrina's eyes hardened slightly. "I appreciate your concern but my son has made his choice. I will pay any price you ask, now remove the boomslang." The older man shivered and slowly obeyed, obviously not liking having to handle the reptile.
Once Hunter was in Harry's hands, he hissed happily and moved onto his new master's shoulders. Sabrina paid the shopkeeper and magically sent all of Hunter's supplies to the Leaky Cauldron. Once they were outside, Sabrina stifled a gasp when Hunter suddenly vanished. "Harry, where is Hunter?"
Harry giggled when Hunter hissed with laughter in his ear. "That's one of his special abilities, Mum! He can turn invisible and even Apparate short distances." Sabrina's eyes widened and then she chuckled. "That will certainly come in handy, won't it? Now let's find Father and Magnus, we need to visit Ollivander's shop for your wand." She hated having to get Harry a traceable wand but knew that Dumbledore would become suspicious otherwise.
Harry ended up having an oak wand with a dragon's heartstring core which meant a steady hand, loyalty and yet very powerful. His family was pleased with that outcome. The final stop was Eyelops for Harry's owl. Hunter was naturally uneasy about this but his master assured him that whatever bird he chose wouldn't attack his familiar. Inside, Harry's eyes were immediately drawn to a beautiful snowy owl. To everyone's delight, she immediately flew over to Harry and landed on his outstretched arm. The happy young man decided to call her Hedwig. "Now I can write to Draco before school starts!" Sabrina smiled at her son's eagerness but also saw that the long, exciting day was starting to get to him. "Come on, love, let's go home. Tomorrow, you can read your books and write to Draco, okay?"
Harry nodded and whispered to Hunter, You ready to go home, Hunter? His familiar hissed happily, More than ready, Master Harry. Sabrina shook her head and whispered, "Careful, you two. You don't want people to think Harry's mental, hissing to nothing, do you?" Harry blushed and nodded. "Yes, Mama." Hunter hissed a laugh in his ear, making the hair on the back of his neck stand up.
The family Apparated back to Wildwind Manor and ate a wonderful dinner. Later, as Sabrina was tucking Harry into bed, her son had a question. "Mama, the people that took my money... will I meet any of them at Hogwarts?" Sabrina sighed. "Yes, darling but only the Headmaster and Weasley children. Why do you ask?" Harry bit his lip. "Well, how do I act around them if they stole from me?"
Sabrina spent a moment in thought. Her knee-jerk reaction was to tell Harry to have nothing to do with the younger Weasley children but she doubted that all of them knew about their family's misdeeds. "I would suggest waiting on offers of friendship with the Weasleys, Harry. Feel them out first. As for the Headmaster..." Harry shivered at the anger in his mother's voice. "Show him the respect that you would give any professor, of course but don't let him get close to you. Keep your Occlumency shields up at all times around him and use the lessons that we taught you." Harry lit up and recited, "Be pleasantly vague and make no promises until the person is proven trustworthy. Read between the lines in conversations to find out true motive." Sabrina gave a proud smile. "Exactly right, my love. I truly think that you would make a fine addition to Slytherin." To Harry, this was high praise and he went to sleep with a smile on his face, Hunter sleeping contentedly at his feet.