Disciple's Blood, Invoking the Grandmaster's Divine Might

"Final measure..."

Before we left, Master had told me about the last trump card he had left behind.

He said that if some Great Fiend truly dared to defy Heaven's mighty wrath and risk its life to trade lives with me,

he had a way to ensure I could retreat unscathed.

But when I asked him what that method was, he hadn't told me.

Now that Master had brought it up, he was clearly about to use it.

And with our usual abilities, it seemed we really couldn't defeat this weakened Great Fiend.

Trying to stall it seemed a little impossible...

But Master was telling me this instead of using it directly.

Did he need my help?

"Master, what method is it? Do you need my help too?"

I asked.

At that moment, Master took out the Grandmaster's spirit tablet, wrapped in yellow cloth and tied with three peach blossom knots.

He said:

"With a disciple's true blood, I invoke the Grandmaster's divine might for protection!"

The instant Master spoke those words,

my expression changed drastically, and shock filled my face.

When we had brought the Grandmaster's spirit tablet, I had considered

that it might prove useful.

After all, the Grandmaster had been an incredibly formidable being.

And this tablet received our daily offerings, so it naturally carried divine might.

Even Grey Master had not dared enter our room when he came to take the lamp oil.

At the same time, the Great Fiend that had turned into black clouds above us roared furiously:

"Damn it! None of you will survive! Die!"

As its voice fell, the black clouds churned.

Like thunderclouds of black mist, they gathered above our heads.

As the clouds continued to gather and grow denser,

the eyeballs that had opened within that roughly two-hundred-square-meter patch of