The plan was simple and so foolproof that Ronald Weasley himself could flawlessly execute it: the pathologist (Mike? Mark? who cares) would send an anonymous tip to the Ministry and alert that someone had seen something floating in the river on their way to work and wanted to notify the MLE  to get there as soon as possible. Ginny and I would be there, hidden under Potter’s Invisibility Cloak, ready to levitate the body into the river. The real Hermione would stay hidden in the morgue until everything was cleared and we’d come back to hide her under the Cloak and get her to a safe house where she could stay unbothered until the plan succeeded.