Starfall

HPDM slash, past HPGW. A Dark hex dissolves Harry's marriage to Ginny, and sends Harry down into a spiral of depression. To console himself, he keeps a private journal in the persona of Ethan Starfall, normal wizard with a big family. Draco sends a desperate letter asking for help with Scorpius; Harry finds it, and responds as Ethan. Perhaps he shouldn't have. COMPLETE.