Megosztott hang

Mr Gray tells her this is not the time to mourn. He asks if they are far from people and she says yes only her house is around. He asks the time and she says 10 pm. He says good there is still time and tells her to stay inside. Hours later Mr Gray struggles to cast a spell but keeps failing. The girl watches and tells him he is doing it wrong correcting him. Mr Gray tries to stop her but it is too late as the portal expands into a giant flaming door