The Red Thorns adventures (Harry Potter Marauders era fanfiction )

Hogwarts, 1975 Bloom and her gang of friends are not your average kind of witches. They are in a gang called the Red Thorns. What is their goal ? To beat the Marauders and out prank them in every possible way. This year they are starting their 5th year and this is the year that will change for better or for wors...