Generally, the library was filled with fifth years, all trying to study. What bothered me was that our group was the only one that was inter house. All other groups were strictly divided into houses. Hufflepuffs, Gryffindors, Ravenclaws, and a small spattering of Slytherins were all in their own groups. We were a group mostly filled with Gryffindors, but had someone from each house. Susan and Hannah sat with us on many occasions. While each of us were busy with something, I noticed that Harry was more stressed than usual.