the pack was in the hale loft. stiles was discussing something with scott, lydia was explaining to malia how the algebraic formulas work, liam was learning how to release his claws, and the hales were discussing the cost of rebuilding their home. at one point, everyone heard a noise behind the front door, as if someone was arguing

• hey, don't roar at me. this is getting hard

opening the door, derek saw two girls, one was pressing the other against the wall, growling threateningly and releasing her fangs. hearing the words of the other girl, she got even angrier, but let her go, adjusting the edges of her shirt and receiving the same gesture in response, which is why he looked at stiles, and then cleared his throat and spoke:

• girls, did you need something?