Harry breaks the copy of Sirius' mirror in 7th year after the horrific end of the war. He is sent back to 1975 and takes up the mantle of Lord Peverell. He hopes to turn around the tragic Black family story. How? By getting newly widowed Lord Orion Black to fall in love with him.
Disclaimer: I do not own Harry Potter. This fanfiction does not belong to me and can be found on AO3. It is written by Herald_of_Dreams.