The Serenity of His Rage

HPDM slash, AU of HBP. Snape never swore a vow. Draco accepted Dumbledore's offer of sanctuary. But when Voldemort kills Narcissa in retaliation, and Dumbledore insists on creating a soul-bond between Draco and Harry to subdue the Horcrux in Harry's soul, Draco decides to use both the soul-bond and the sanctuary to keep his family safe. No matter what Dumbledore intended. COMPLETE.