Nyar agrees with Cairn's plan for a careful search of the premises. He stands to the right side of the warehouse, maintaining a lightning column of energy next to the portcullis (to the single outer door). He moves his light cantrip around the ceiling, looking for anything that could be suspended above the ground.
Seeing Cairn go for the chest, he comments, "Your magic ax could likely hew off the end of the chest, like slicing a loaf of bread."