Harry in the Sharp Objects series travels back in time to his fourth grade in the original book to help his past self make the right choices.
A crossover of the original novel, Horcrux, to save Sirius and Deng Xiao.
But why did you also bring that old guy from the fandom into this world? Hascong from a certain magical world said that they are really used to falling in love and killing each other. . .