False alarm?

Ozul was honestly not sure if the formation would go off when Jinx passed through the gate, but from the guards' disregard of her presence, he realized that it would probably ignore someone of her size.

'I don't care either way...' Ozul thought inside his mind as he slowly made his way to another side of the wall from where he kept an eye on Jinx as she slowly approached the gate.

The guards didn't notice Ozul in the dark and minded their own business.

From Irvin, he had heard that even a man with almost no Mana at all was detected by the formation. It could only mean that anyone above a certain size trespassing the estate would automatically set off the defenses.

Ozul figured that they had probably manually disabled the formation when he had briefly entered the estate to talk with Rufus previously. It also meant that the control of the formation was basically in someone's hand and they could turn it off and on anytime they wanted.