Looking at the massive creature struggling inside the water cocoon, the sister and brother froze for a moment as well. Then, coming back to their senses, they exchanged a glance, quickly closed their eyes, and began extending their mental power to try.
Benjamin watched them with eager anticipation.
He could sense two streams of mental power slowly being released, stretching toward the Griffin King like tentacles. They seeped through the gaps in the water cocoon, winding around the Griffin King's head layer by layer. Their movements were incredibly gentle, like several frail vines that could snap in the wind.
After the mental tentacles had wrapped around it five times, they suddenly tightened inward like an octopus abruptly exerting force. At that instant, the Griffin King, which had still been fighting against the water cocoon, gave a violent shudder as though struck by lightning and abruptly froze in midair.
Yet at that same moment, the sister and brother also shuddered.
The mental tentacles seemed to have encountered immense pressure. They were pulled taut, as though they were about to snap. Beads of sweat appeared on the siblings' foreheads as they increased their output. More mental power poured out from them, surging toward the Griffin King wave after wave, passing through its feathers and bones and flooding into its element-packed brain.
"They're trying to draw a symbol within its mental power." At this level, only the system could continue observing. It spoke with great interest. "Come to think of it, this is quite similar to how mages meditate with runes. The only difference is that these Magic Beasts have runes drawn by others, whereas you draw your own... Hehehe, perhaps the runes within your minds actually come from someone else's will too. You just don't realize it!"
"..."
Benjamin was left speechless.