As he thought about it carefully, no more than half an hour passed before the magic symbol started darkening again. If they couldn't remain for more than half an hour, then how was Bane able to defeat the Highland Shrine?

Finding out that the stone tablet was the Sage Chapter didn't clear up Lin Yun's questions. Instead, it only added more difficult ones.

'Could this Sage Chapter be defective? There is no way…'

Besides the problem of the Ultimate Spell's power, the stone tablet completely fit the description of Bane's Sage Chapter. If it was a defective item, wasn't the power difference too high? But if it wasn't a defective item, then why was the power of the Ultimate Spell lacking?

'It should have had the power of a 4th Rank Spell normally, but it couldn't even reach the 3rd Rank. The difference is too great. It's a whole Rank, from Great Mage to Mage…

But Lin Yun suddenly remembered after being puzzled for a long time. 'Hold on, Undead Essence!'

He had been able to activate th