*Alice looks at Lily apologisingly. She knows what is happening now is hurting her.*

Look, the Runes aren't finished, we'd have to wait for them to be done. They'd be a great tool in communicating with Regulus, but they need to be finished first. And blackmail reactions are unpredictable and risky.

The only thing we'd have to worry about is Crouch throwing the curse off before we get the chance to Confound him.