"Goblins you say," Mathis says, if there were Goblins back there then Glen should have them secured, neither side had ever been wholly innocent in the wizard goblin conflicts of the past, but most goblins would not attack wizards on a busy street at mid day. Producing her wand he places his own against the tip, and mutters "Prior Incantantem". A simple spell that would show him the last spell she cast. The nature of the spell would determine who was attacked.