To obscure one's presence was slightly different from hiding it. Obscuring one's presence meant, that person's presence could still be seen but there would be a change from their original presence while hiding it meant, hiding one's presence completely.
What this magic item could do was different from the stone Kyran gave Anette.
That stone could camouflage one's aura, making one's aura adapt to that plane's standard aura.
"I realized from the previous blueprint of the tower's defensive array that Master Noir included an advanced concealment formula that targetted your magic signature. It gave me an idea that as long as you are inside the Tower, the Royal Family will not be able to monitor your activity.
"However, they are still aware that you are inside, meaning the Royal Family has a way of tracking you down apart from your magic signature. Once you step outside the Tower of Conclave, it will be easy for them to monitor you.
