In the Ural Mountains of Austria.
A group of mages of five with dispelling spells sneaked silently around the dense forest of a castle. Their auras were also undetectable with special spells for infiltration squads. The big castle looked busy, several military trucks were parked, while some people dressed in military standard black went in and out of the castle.
The squad had worked three days around the mountains before being able to find the castle. Break through mind-boggling deception magic with the help of GPS sweeping. The data gleaned from the previous interrogation of the first captured dark legionaries formed the basis of their search.
"Send our location to the center." someone spoke in a whisper.
"I'm doing it, the satellite signal is blocked here, we need to go upstairs."
"Get up on that tree, we'll keep an eye on things."
Unbeknownst to them, a motion sensor caught the faint movement of them getting too close to the castle.