Of Mongolian Fireflies and Russian Sharpclaws

As colleagues for the F.A.U.C.E.T. (Fetching And Uncovering Creatures Experiencing Terror) department, Draco and Hermione have had their fair share of arguments. When they face their hardest case yet, mixed with an odd swarm of fireflies that glow in the colour according to how they feel about each other, Hermione is struggling to keep a straight mind.