As the young girl opened the door, Rein saw that the room was at least four to five hundred square feet, and there were several devices he was somewhat familiar with, but they appeared more delicate.
For example, the device resembling a Gatling gun with multiple barrels; there were four of these here, and Rein knew they were used for testing defensive witchcraft.
The giant cylindrical metal ingot with an enchanted silver coating was for testing witchcraft attack power, but it was significantly larger than the one at the Mingster Branch, weighing at least several tens of tons.
"My lord, it's your first time here, isn't it? Do you need me to introduce you?"
"No need." Rein waved his hand and said.
He had a general idea of these devices.
After thinking for a moment, Rein decided to test his attack power first.