The outer defensive magic array of the Hilbert Territory is quite easy to be breached.
After all, although he received abundant resources sufficient to create a powerful array, the energy baryte in Hilbert's hands couldn't withstand such colossal consumption.
So, the outer array mainly serves as an initial defense, and the moment it gets damaged, it triggers the full defense mode of the Magic Tower.
And it also activates an alarm.
When Delphus and a Ninth Ring Sorceress behind him, along with three Eight Ring Male Mages, waved their hands spiritedly to break through this thin layer of the defensive array, they were shocked by the terrifying and ear-bleeding noise.
Not to mention, the fact that Gilbert, as a Seventh Circle Mage, having such an unreasonable first reaction to an attack to seek help... Mages, few are willing to owe favors, including from their own teachers.
So generally, when faced with a malicious attack, they would try to struggle on their own.
