Garrett’s understanding of electrocardiograms in his past life... well, it wasn’t that he didn’t understand them. At least, as a deputy director in the emergency department, he could use an electrocardiograph, could recognize certain dangerous patterns, and knew to call cardiology for consultation when he couldn’t discern them. He was also articulate about the principles of cardiac electrophysiology.

But to ask him to manually construct an electrocardiograph...

That might as well kill him.

He truly couldn’t do that.

Electrode tubes, amplifiers, filters. Right, and also to write the program. Garrett rubbed his head, although after crossing over, his hair was still thick, it wasn’t for such waste!

So, what should he do? The display issue was resolved, but how to solve the export problem? Electrode patches... coupling agents... the temperature required for superconductivity seemed to approach absolute zero, he wasn’t sure if a silver dragon could manually craft it...

"Garrett, what are you thinking about?" Seraina suddenly hopped over and poked him: "I cast [Mind Detection] but couldn’t read anything... what is an electrode? What is superconductivity?"

"What did you say?!" Garrett turned sharply. His eyes shone brightly, staring at Seraina, who instinctively stepped back:

"Electro... electrodes! And superconductivity... what are those? Why do we need to make them?"

"Not that phrase! The one before!" Garrett waved his hands urgently. Seraina stepped back again, muttering guiltily:

"Mind Detection... I just wanted to see what problem you were encountering... if you don’t like it, I won’t cast it anymore..."

"Mind Detection! Yes, that’s it, Mind Detection!" Garrett jumped up, shaking with excitement. He walked from the front of the desk to the left wall, then from the left wall to the right wall, muttering to himself as he walked:

"Mind Detection... collecting information... interpreting... what information is being collected? Waves? Brainwaves? Could it be brainwaves? — Bernard! Bernard!"

The barbarian follower hurried out. Garrett, gasping for breath, grabbed him:

"Your helmet! Lend me your helmet! Quick!"

Bernard, confused, still clattered away and then rushed back like a whirlwind with the helmet. This helmet, crafted by a dwarf master for Bernard, was solidly made with a pair of metal bull horns added to each side. Garrett grabbed it, and his arms immediately sank.

"So heavy..."

Garrett muttered as he lifted the horned helmet, gripping the horns on either side and placing it on his head. The helmet was large, his head small, and immediately, it was pitch black before his eyes. He didn’t have time to adjust, fumbling to turn to Seraina:

"Cast another Mind Detection! Quick! — Can you read it now?"

"It’s okay, such a big hole!"

"What about now?" Garrett suddenly pulled down the visor. After a moment of silence, Seraina’s voice, a bit distorted and buzzing, came through:

"Not really... but metal naturally blocks magic, right! What does that prove?"

The persuasion indeed lacked. Garrett’s mind sank into the space bag, searching through it, but he couldn’t find what he wanted. After pondering for a moment, he lifted the horned helmet, revealing half of his face:

"Seraina! Can you shape metal — that is, draw silver ingots into thin silver threads and weave them into an even net to cover me?"

"…You better take that lid off before talking!!!"

Seraina’s magical shaping ability was somewhat lacking, although Garrett had his doubts, probably because she lacked patience. Finally, after Garrett promised to demonstrate an equipment that could block electricity, Seraina decisively ran off to drag her own aunt over.

Then, according to Garrett’s request, Ophelia personally took action, shaping a large steel ingot provided by Garrett into a Faraday cage with mesh only 1 square centimeter in size, interconnected and interlocked.

Garrett personally squatted inside. As soon as the cage was closed, Seraina couldn’t wait to shoot a small bolt of lightning. The electric spark flashed on the steel wire, abruptly extinguished, while Garrett stood inside, smiling at her, unharmed.

"Eh? Why is that?"

Both silver dragons’ eyes lit up. Garrett urged anxiously:

"I’ll tell you later! — Quick, cast another Mind Detection!"

"Got it! — Just think about something random!"

Both silver dragons cast [Mind Detection] together. Soon, they exchanged surprised looks:

"It’s indeed harder than before!"

"That shouldn’t be, the steel wire is so thin, much thinner than the helmet!"

"And it has so many holes!"

"What if the steel wire mesh is made even finer?"

Ophelia

simply transformed into her dragon form. She lay in the center of the medical area, closed her eyes, and her body shone with silver light. Psychic power activated, the steel wire mesh around Garrett spontaneously disassembled, dancing in the air. The wires were pulled by invisible hands, one meter stretched to two meters, two meters to four meters, then interlocked into an even denser grid...

Garrett automatically squatted back into the cage. The second round of [Mind Detection] was thrown, and indeed, the protective effect was enhanced.

"Why is that?"

Two eyes, the size of silver plates, stared at Garrett, nostrils puffing, sending bunches of white mist directly onto him. Except for Bernard, the other barbarians had long fled back to their rooms, only Garrett, through the cage, tried to explain to the silver dragons:

"Actually, the brain, like the heart, also generates electrical currents, producing observable brainwaves... I personally suspect that [Mind Detection], this magic, is the reception and interpretation of brainwaves... and the, ah, steel wire mesh can block electrical currents, so, it would affect [Mind Detection]’s reading of brainwaves..."

[Mind Detection] is a second-level magic. The spell’s effect range is a conical area, with the casting process divided into three stages:

The first stage, scans within the casting range for the presence of thinking (intelligent, conscious) beings;

The second stage, scans for the number of thinkers and their intelligence levels (Garrett strongly suspects it’s the activity strength of brainwaves);

The third stage, perceives all surface thoughts within the area. Thus, this magic, at least consists of three different configurations combined, perhaps with some structures linking them together. But which part controls which, is beyond Garrett’s capability...

He looked expectantly at the lady silver dragon. Asking for help! Asking to dismantle! Asking to disassemble the spell structure piece by piece, to see which part controls scanning the surroundings, which one receives, and which one reads!

Ophelia, without a word, began to dismantle. In the air, phantoms danced and flickered, fine magical fluctuations continuously appearing and disappearing. For an adult silver dragon, manipulating a few low-level magics is almost like eating and drinking, barely feeling the depletion of magical power.

Soon, a spark of electricity shone at the tips of the lady silver dragon’s fingers:

"Indeed, it can receive electrical currents! — Garrett, come out, let’s try again!"

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