The Hidden Key

Back in his bedroom, Manus took out the box Mrs. Margaret had given him and examined it closely:

"In this state, there's no Magical Aura at all... How interesting."

Although nothing seemed unusual now, Manus was certain that something else was hidden inside the box.

Setting the box on the desk, Manus took out its contents one by one—Mrs. Margaret's notes, the notes of previous generations, fabric samples, a set of brass needles in various sizes and shapes, an old dragonhide measuring tape...

At least now he understood where Feilite's insistence on that dragonhide measuring tape had come from.

As the last item was removed, Manus looked at the completely empty box. A Magical Aura lit up within it.

Magical Aura was not omnipotent. It could not detect every kind of magic; it could only detect magical effects that were not concealed in the first place, or at least not concealed on the level of Magical Aura.

Otherwise, there would be no need for so many detection methods, nor for all kinds of concealment magic.

This was the first time Manus had encountered magic that could hide its Magical Aura in this world.

If he had not taken every item out separately and examined them while checking the contents of these boxes on the way back, he would never have noticed it.

"I've grown arrogant."

Manus reflected on his past behavior. There was no doubt that he had trusted the magic he had mastered too much.

Because the systems were different, the detection magic from his world before transmigration had been almost unfailingly effective in this world. He should not have relied on a single Magical Aura spell to conclude his examination of his own belongings.

Yet all this time, anything problematic had been detected by Magical Aura, while anything