Such magic scrolls also existed in their world.
It was commonly used to transmit information, especially confidential information. In this way, the chance of intercepting the information would be low.
Moreover, these rune masters could also put some restraining formation within the magic scroll, preventing others aside from the intended one to read it.
Samuel himself couldn't make it.
But he was area of these magic scrolls existences.
There were even some magic tools that could achieve similar method.
"Haha…" Mr. Zan laughed dryly when he heard Samuel's words and then rolled his eyes. "You're really ruthless."
"I'm a businessman, Mr. Zan." Samuel smiled.