Bab 30: Valerie, The Fae Whore

Aldric's lips curled with disdain at the sight of Remy. He had only ensnared her mind and made her compliant to his suggestion, but who knew that her mind was too fragile to accommodate his powers and now, he had a lap dog at his service.

Nonetheless, it worked in his favor, because Islinda no longer suspected him and she had been careless enough to leave clues - the clues that he needed. Even while glamoured to look like a child, Aldric had sensed his brother's powers tonight. 

Valerie was still weak and had not come into his full powers yet, but Aldric tamp down his own ability. Just as humans instinctively suspect some creatures aren't humans, Faeries can sense one another. It was like a frequency and when his brother came into that hall, he was able to sense him and saw the both of them leave together.