Josh laughed again looking at the two ''I'm sorry'' he said between laughters ''No mean to be rude but...come on!'' he opened his arms ''There'r no Thestrals here. If you happen to see one though, which is unlikely to happen, say 'hi' from me...please'' he walked near them ''And i'm not making fun of you anyway...i'm making fun of your idea'' he turned to Arrick, the weird boy who he earlier had seen in the train. ''I doubt there's anything invisible in here, Hufflepuff boy'' and he went back on searching.