Hermione read the title twice in mild confusion as Katie opened up the pamphlet and started to read aloud, "The ministry of magic has noticed increased activity and possibility of the following dark arts related species; Dementors, Inferi and Giants among others. It is well known to produce an Expecto Patronum charm when being hunted by dementors.." Katie paused to look at Ron and Hermione as if to say "and luckily for us, Harry taught us all how to do it in DA last year." She took a breath and continued, "however a Patronus charm will not work in the face of an inferi, inste-" 