Chapter 821: Phantom of the Seabed

"Beep... beep... beep... beep..."

When the level-two alarm sounded inside the base, Prowl immediately contacted the Smart Brain at the command center.

"Smart Brain, report the situation!"

"Commander, our undersea Early Warning Radar deployed in the coastal waters has captured some strange fluctuations, suspected to be Decepticons!"

The undersea radar was originally deployed in the waters around Trindade Island to scout the increasingly frequent activities of various nations' submarines in the nearby sea.

Later, following the invasion of the Replica Warriors, when summarizing the post-war situation, Sun Cheng and the others discovered that the island's security and defense system had too many problems.

Consequently, the island's defense system underwent a comprehensive upgrade.

The undersea detection radar originally deployed in the surrounding waters to scout human submarines was also included in the upgrade.

After months of technical upgrades, radar is now deployed not only in the waters around Trindade Island but also around several other islands.

The brand-new undersea radar can detect not only the submarines of various nations active in the surrounding waters but also various deep-sea unmanned detection equipment that has begun to emerge in recent years.

It can even detect Decepticons and Autobots.

However, limited by a series of reasons, although the detection range of the undersea radar is 470 kilometers, to confirm the identities of Decepticons and Autobots, one must wait for the target to enter the radar's optimal detection zone—that is, within 130 kilometers—before their identity can be confirmed.

Upon hearing the Smart Brain's speculation, a fierce look immediately appeared on Prowl's face.

"Send me the coordinates and more specific information, and at the same time, monitor closely and update the data for me in real-time!"

"Yes, Commander!"

Prowl was quite inclined to agree with the Smart Brain's speculation that the suspicious intruders were likely Decepticons.

They still have some cooperation with the Autobots, although the presence of Sentinel Prime has made the alliance between their side and the Autobots unstable.

However, currently, the Autobots on Earth are basically only active within Africa, and with the Decepticon Legion as a major enemy on the side, as long as Optimus Prime is fine, even if Sentinel Prime becomes the Leader of the Autobots again, he should not be the first to launch a sneak attack on them.

Prowl was still waiting for more precise data from the undersea radar, but while waiting, he was not idle.

Sun Cheng had entrusted him with the responsibility of the Black Market, and Prowl was the supreme Commander there, possessing management duties including daily supervision and security defense.

Being cautious, he also began to issue orders rapidly while waiting: "Control Center, release two unmanned undersea probes toward the northwest sea area, coordinates xxxx!"

"Received, Commander, the unmanned undersea probes will be released within three minutes!"

"Sprint, you lead a team of Decepticon Warriors and immediately head to the Dumar Reef area to stand guard temporarily! The undersea radar has captured some strange fluctuations in the northwest sea area at coordinates xxxx."

Sprint was the first to lead Decepticon Warriors to provide support after the Replica Warriors invaded Trindade Island.

After changing into a New Body, he is now an Advanced Warrior, and he was kept on the island by Sun Cheng, serving as one of the most important combat forces under Prowl.

After confirming it was Prowl on the communication channel, Sprint immediately replied: "Received, Commander, I will take a team of soldiers to Dumar to stand guard now!"

The Dumar Reef is a group of ring-shaped reefs located about seven kilometers north of Trindade Island; Dumar is the largest reef among them, only about 600 square meters in size.

The other reefs have exposed surfaces ranging from only a few dozen to two or three hundred square meters; because the area is too small and lacks development value, these reefs are not usually within the scope of daily patrols.

Therefore, once there are intruders, this area could easily become a breakthrough point.

After making the most prudent order, Prowl waited patiently.

After the two unmanned undersea probes were released, the Trindade Island Sub-base's ability to investigate the target sea area was rapidly improved.

The unmanned probes are somewhat similar to submarines, but much smaller in size, with each weighing only about 30 tons and equipped with high-power detection and recording systems.

It can dive to a depth of 5,000 meters underwater and reach a top speed of 84 knots.

To prevent being attacked or accidentally swallowed by large marine life on the seabed, this type of unmanned probe is equipped with a small cannon, which can fire a special steel spear about 11 centimeters in diameter and nearly three meters long when threatened.

Because of full-power propulsion, the probes quickly traveled over a hundred kilometers and were about to make contact with the rapidly approaching unknown target.

Then, the next moment, an alarm sounded in the control center of the island's Sub-base, and at the same time, Prowl was also notified.

"Commander, we have lost contact with the probes."

Prowl clenched his fists tightly, emitting a crackling sound of metal friction.

"Did you film or detect anything?"

"No discoveries; the final data transmitted back shows that the opponent fired a Missile from at least tens of kilometers away, hitting our unmanned reconnaissance probe."

In an instant, Prowl understood.

"Enemy attack!"

He issued the order in a deep voice, his tone filled with fighting spirit.

"Wait for my order, be ready to sound the alarm at any time."

"All Decepticon Warriors on the island, begin assembling immediately."

"Control Center, prepare to release smart sea mines!"

"Notify the nearby patrolling Ghost Fleet, transmit the precise coordinates to them, and order them to release torpedoes toward the target sea area immediately!"

Sun Cheng had already considered the possibility of an attack from the seabed and had made some targeted arrangements.

However, the complexity of the seabed destined that as the defensive side, they would be more passive than the invading side when facing an intrusion from the seabed.

Prowl quickly realized this, but he had to wait patiently until more definitive intelligence was transmitted.

Soon, the Central Main Control Intelligence on the island processed the data captured by the undersea radar and immediately transmitted it to Prowl.

"Commander, the latest data has been processed. The radar detected seventeen intruders and confirmed the target's identity as Decepticons."

Almost at the same time, muffled explosions resounded in the sea area over a hundred kilometers away.

Prowl gave a soft hum, "I know, continue to wait for my orders; do not sound the alarm until you receive my command."

Just seventeen invading Decepticons, although their strength is unknown.

However, Prowl is confident that he can repel them with the island's current defensive forces.

He rushed rapidly toward the northwest of the island; as the Commander of the Trindade Sub-base, he is also the most important combat force here.

Now, it is time for battle.

Thanks to the two book friends "Book Friend 20180831060343126" and "WF Wu Feng" for their support through tips.

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