So a few days later and Harry and Hermione were to be found leaning over a softly simmering cauldron in Cassie's potions lab. Making an antidote for Angharad and Hermione and their poisoned blood was a tricky endeavour, and time was running out for the former, at least. They didn't have an endless supply of Antonin Dolohov's blood to test with either, so the potion had to be perfect first time, if they could manage it.