He had already used the allies of the Pure-breed Vampires, the high-ranking members of the Mages’ Guild, as practice dummies for Mental Encroachment and turned them into vegetables.

Still using Possession on the Guild Master, he had summoned the mages one by one, telling them that there was something to discuss, brought the Guild Master’s mouth close to their ears as if to whisper something confidential, undid the Possession over the Guild Master and extended his narrow tongue into the mages’ ears to administer poison and capture them.

After that, he had used Mental Encroachment until they entered vegetative states.

“I always imagined mages to be mentally strong, though,” said Vandalieu.

Ordering them to carry forbidden tomes and cursed items outside of the forbidden archives hadn’t been difficult. They were all important individuals, after all.