Regulus Black - an HP short story

This is an HP short story about Regulus who didn't die in that cave but who was saved by Kreacher.
He asks Dumbledores help to find and destroy the other remaining Horcruxes.
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Available in Mandarin on OurWizardingWorld
On jjwxc: https://m.jjwxc.com/invite/index?novelid=6784649&inviteid=158643373 & Lofter: https://lancer91202.lofter.com/post/73e949ce_2b534b705