It was sad that they couldn't outright trust anyone anymore. That people might have taken the form of someone else. Polyjuice potion, who the hell invented that? They never should have made the stuff. In any case though, if Emmeline had been polyjuiced and this was someone coming to kill her, she was prepared. After all, who showed up from the dead?
However as soon as she saw the patronus, she looked much more relaxed. Pulling out her wand, and conjured up her coyote patronus. It was amazing how easy it was to think of a really good memory, despite everything that was going on. Eventually it faded and Hestia smiled up at Emmeline.