“Linear algebra?” Zhao Ruizhi frowned. He didn’t even have time to feel anger. He thought, What kind of secret manual is this? Why haven’t I heard of it before?

Forget about him, even Mi Li, who had read through the entire Qin Royal Family’s library, was stumped. What the hell is linear algebra? Why don’t I know what this is?

Only Bi Linglong seemed to have picked up on something. She recalled that according to Zu An’s information, he seemed to have been Brightmoon Academy’s mathematics teacher. Furthermore, when he had made a trip through the Royal Academy, even those revered teachers had been left in awe of his knowledge. This ‘linear algebra’ was probably one of the special skills he had.

Zu An confirmed the stele inscriptions with Zhao Ruizhi one more time, and then he muttered to himself, “‘Dark clouds’ should be matched with ‘Heavenly Gate’; this describes our situation when we first arrived on this island…”

But...