It could go a few ways. Maybe a secret society of werewolves decides to assist. Or maybe a powerful charm or potion is discovered that provides the needed assistance. The possibilities are endless in the magical world of Harry Potter.
Maybe a fellow wizard or witch comes to their aid and uses magic to solve the problem.
Often, a fellow wizard or magical creature comes to the rescue, using spells or their unique abilities.
The werewolf child could be found by a wizard. The wizard, seeing the potential in the child, could offer to teach it magic to control its werewolf side. This would be a unique opportunity for the child to gain some power over its own nature and also protect itself from those who might want to harm it because of what it is.
He could use the staff to enhance his already existing magical abilities. For example, his Patronus charm could become even more powerful, being able to protect a larger area or fend off more Dementors at once. This would give him an edge in battles against the Dark Arts.
In the fanfiction, Snape could be in a really tough situation when Harry comes to him for help. On one hand, he has his loyalty to the Dark Lord (or at least that's what others think), and on the other, there's this boy who is the son of the woman he loved. He might end up guiding Harry in a very roundabout way, like giving him a potion ingredient that has a hidden meaning or leading him to a certain book in the library that contains the solution to Harry's problem.
In the world of Harry Potter fanfiction, Harry might need help in various ways. For example, he could need help dealing with a new dark wizard threat that the original books didn't cover. Maybe he's struggling with his post - war trauma and needs the support of his friends more than ever. Another possibility is that he's in a situation where he has to learn a new and difficult magic spell to save someone he loves, but he can't seem to master it on his own.
One idea could be that the werewolf child is in a human village and is being hunted. A kind-hearted human could find the child and hide it, learning about the child's unique situation and trying to find a way to protect it from both the villagers and the werewolf pack that might be looking for the child.
In fanfic, when Harry Potter goes to Gringotts, he might discover some long - lost secrets about his family's vault. There could be hidden spells or artifacts that were left there by his parents or ancestors.
The fangirl could be in for a real treat. She may discover unique interpretations of the Harry Potter universe. Fanfics often explore different character backstories or alternative timelines. So, she could learn about what would have happened if Harry had been sorted into Slytherin instead of Gryffindor. She might also encounter new magical creatures or spells that the author of the fanfic has created. And, depending on the type of fanfic, she could be part of a big adventure to save Hogwarts from a new, even more powerful dark wizard than Voldemort.
The magical creatures could play a role in helping Harry. For example, the centaurs with their deep understanding of the stars and magic could offer their wisdom. The house - elves, like Dobby (if he's alive in the fanfic), might use their unique magic to assist Harry in a time of need.
Well, it could be a humorous plot where Harry is in the middle of an important event at Hogwarts, like a crucial exam or a battle against dark wizards, but he really has to pee. Maybe he's trying to hold it in while casting spells and his friends start to notice his strange behavior.