Harry-potter-club

Ten minutes later, the four of them were down in the corridor, on the other side of the portrait hole. Hopefully, there wasn't anyone left awake in the common room – they had learnt over the years that someone seeing the portrait door opening itself without anyone visible entering or getting  out wasn't the best way to avoid casting too much attention on their little night strolls. Peter had taken his rat form, running a few feet before the three others, looking out for ghosts, Peeves, anything that they hadn't yet marked on the Map. But even if that made one person less to hide under James' Invisibility Cloak, it wasn't going so easily