Chapter 421: I learned electrocardiography, but my mental power...

"Alright, this is what you wanted."

After Garrett’s residence was covered wall to wall, ceiling to floor, with no space spared, and the desk piled high with a thick stack of calculation paper, the Silver Dragon Lady finally came to a satisfactory conclusion.

She swept her hand across the desk, and a wave of invisible magic force gathered a few sheets of white paper, sticking their edges together to form a large, smooth sheet:

"I’ve got the new configuration ready for you. The red circles are for detection, the blue circles are for waveform display. Do what you can, add as many as you can—but don’t overextend your mental strength!"

With that, she hooked her finger and strode away. The Faraday cage levitated on its own, following behind the Silver Dragon Lady, swaying as it flew out the door. It seemed the Silver Dragon had taken a fancy to it, planning to take it back for some electric play.

The 【Endless Ink Pen】clattered onto the calculation paper, motionless, its diamond inlay near the nib turning slightly transparent. It was almost squealing in distress: "Really out of ink~~~"

Ah, the big shot didn’t pocket the feather pen as an afterthought. How fortunate.

Garrett hurriedly took out a bottle of ink, dipped the feather pen into it for a recharge, no, for an ink refill. Then, grasping the freshly drawn and annotated schematic that the big shot had prepared, he dove into studying, understanding, and memorizing it.

He had to memorize it thoroughly until it flowed effortlessly, then use his mental strength in the meditative world to construct the pattern without a single mistake. Only then could he invoke his mental strength to pull the external magic force, shaping what he desired...

It was difficult...

Nine electrodes, nine detection points, twelve leads. If considering limb leads, there was the need to switch back and forth between the three standard leads and three augmented leads...

Even just monitoring three leads simultaneously, but having to control detection, reception, and display equates to supporting a dozen or more Mage Hands, or even more potent ones. Clamping, pulling, holding, passively separating...

Although he had previous operational experience, most of the Mage Hands were stationary, with only two or three actively maneuvering!

Garrett rubbed his forehead in discomfort. Ah well, let’s just get the main structure up and then treat the nine electrodes like nine octopus legs, stretching them out one by one!

He closed the doors and windows, entering a quiet meditative state. After advancing to a fifth-level priest, Garrett’s mental strength climbed another level, both in total amount and solidity, significantly stronger than before. Unfortunately, advancing to a fifth-level mage seemed stuck for some reason, leaving many spells unlearnable...

Garrett wasn’t in a hurry. What unique magic did a fifth-level mage possess that a natural priest didn’t, which he urgently needed?

Fireball? No, he truly wasn’t lacking in offensive power. In fact, it had been a long time since he last fought with anyone;

Flight? It seemed very tempting, but compared to the electrocardiogram, the ECG was more crucial;

Phantom Steed? A Phantom Steed was indeed much stronger than a first-level summoned mount, but a mage needed to reach level 8 for it to gallop on sandy, muddy, or swampy grounds; level 10 to walk on water; level 12 for short flights; and only at level 14 could the Phantom Steed fly.

Relying on that was less feasible than contracting a flying creature or buying flying gear.

Thinking it over, Garrett found only the construct spell "Refuge Hut" appealing, providing a mobile surgery room. But forcing a breakthrough just for that seemed unnecessary, making the ECG magic more appealing...

Garrett patiently adjusted his state. In the meditative core, the little figure formed from mental strength, bones, muscles, blood vessels, and the nervous system fully crafted at the fourth stage, all interconnected silently. After advancing, the sculpting of internal organs also began.

Mental strength flowed through the meditative core, clearing the spiraled shell again, and Garrett threw his energy into constructing the spell model. Hmm, this structure forms the cloud screen, this one divides the screen into sections, this one inputs signals to display lines;

This structure detects electrical waves, this one inputs the detection signal...

Oh no! A mistake! Start over!

Drafting a spell model in the meditative world was no easy task. The construction needed to be accurate, with a low error rate; otherwise, at best, the spell’s effect would be poor, and at worst, it could explode one’s spiritual sea.

A certain amount of solidified mental strength was required to build the model; otherwise, one would have to flip through the spellbook each time when casting.

The building process had to be smooth, without interruption, such as sketching a part, forgetting the next part, exiting meditation

to check the spellbook...sorry, please start over from the beginning.

Of course, Garrett was capable of memorizing it. But just partitioning the main structure into even squares, each corresponding to an input signal, was already painful; processing the information from nine detection points into twelve signals was almost unbearable. He gritted his teeth, mobilized his mental strength, and forcefully constructed the entire model...

Then, holding a shaved rabbit, he invoked his mental strength to construct the cloud screen. Using the screen as a base, he extended detection tendrils one by one.

To reduce Garrett’s consumption, the Silver Dragon Lady, while designing the spell model, eliminated most of the "Detect Thoughts" functionality, keeping only the detection and transmission modules. Even the magic’s endpoint, after consulting with Garrett, was changed to be guided by mental strength on the spot—

Anyway, during an ECG, the doctor also sticks the electrodes on the patient one by one, cough.

Garrett controlled his mental strength to remain calm, guiding the detection heads, placing them on the rabbit one by one. Left front paw! Right front paw! Left hind paw! Although it was possible to place a ring of detection heads around the heart inside the body, for the first trial, he started with standard positions...

After placing the three detection heads, connecting to the cloud screen, and lighting up the power, one, two, three, the ECG—began—

The cloud screen lit up with a mess of lines. Zzzz, zzzz, like a severely interfered radar, or like static on a television. And Garrett, involuntarily screamed, bending down holding his head.

When he lifted his head again, the thin cloud screen silently dissipated into nothing.

Garrett: ...Was it too forced? Can my mental strength not support it?

Hmm, it must be because I’m too tired today! It must be!

Garrett rested to gather his strength, had a good sleep, and started over the next day. This time, the result was indeed much better, with one, two, three ECG lines appearing on the cloud screen...

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