I Left the Stove On at Home

"—What Ten-Thousand Souls Banner? That sounds like something a villain would use. It's obviously the Banner of the Human Emperor!"

Gavin corrected him on instinct, then realized that wasn't quite right either.

He had no interest in being a human emperor. An emperor ruled humanity; Gavin merely coordinated nodes. Besides, he only had one node so far. Calling it that would be false advertising.

"I should call this the 'Fallen Wizard Soul Reemployment Center.'"

But that was only a joke.

The official name ought to be more precise. Shorter, too.

Gavin thought for a moment, then opened the Diary to its first page and wrote five characters:

[Book of Ten Thousand Spirits Calculation]

After naming it, Gavin did not immediately transfer the extraction structure onto his own body.

The structure on the Diary differed somewhat from a human body.

One was something like a flattened cube; the other, an irregular cylinder.

He needed to redesign and test the structure to make sure it would work on him.

Fortunately, he no longer had to figure it out alone.

After drinking a bottle of restorative potion, Gavin opened the Calculation Book.

"Rebuild this Magic Rune structure for the left arm of a human body. Make sure Magic can flow through it." Gavin thought for a moment, then added, "Once it works, we'll have an unlimited energy supply."

[?!]

[The Book of Ten Thousand Spirits Calculation pledges undying loyalty to the great Gu!]

[Magic Rune reconstruction in progress...]

Once he fed in the data, the Diary calculated for nearly ten minutes.

Pages turned one after another. Silver lines kept contracting until, at last, it produced a new structural diagram.

The widest part curved around the wrist bone, the main section lay against the inside of the forearm, and the