"..."
Ronald looked at the magical illusion in front of him, his mind momentarily blank.
He had been using a spell detection all along, so he knew there was indeed someone in the house. But the difference was, the person should still be deep in the room, focusing on their work.
Following past experiences.
Ronald instinctively treated the magic fluctuations in the room as defensive spells set by the other party.
But who would have known upon entering.
It was indeed a defensive spell, but it was an illusionary spell!
According to Ronald's understanding of mystical arts, this type of spell, as long as it has some level, connects to the caster's senses.
Right now, being seen by the illusory spell was almost equivalent to being directly seen by the owner of the room.
The next second, Ronald's spell also provided feedback.
