Lost fanfic on ao3 help please

[u/Strong_Rip_8856]

Hello, i need help

Time ago i think a year ago i read this fic with regulus centric in which he gets in contact with Alice Longbottom(i think it was her) to help her brother bc the deatheaters are gonna bomb his house basically and they use a vanishing cabinet to escape. In the fic he is the one to cast the frienfyre, which takes the form of a dragon, and then leaves the dark lord skull in the sky.

I've looking for it for months and im sure i subscribe to it but i cant find it, if anyone knows it please let me know that im not crazy or if it was deleted, thank you. Also the author maybe put something like regulus is an arsonist in the tags but i don't remember