How could the Cyan Demon Ancestor not know that the Flying Boat had been heavily damaged in the storm? Forcibly activating the Seven Cities Profound Evil Formation would only severely impact the remaining, intact Restrictions.

At that point, the Flying Boat would very likely suffer irreparable damage, leaving it stranded and immobile in the middle of the sea.

But he was different from these Demon Cultivators, who were only at the Foundation Establishment and Qi Cultivation levels. With his Late Stage Golden Core Cultivation, he had a decent chance of finding land even without the Flying Boat.

On the contrary, failing to severely wound this Profound Whale and allowing it to continue harassing him would be a far greater disaster.

The Cyan Demon Ancestor hadn’t forgotten the other Flying Boat that had escaped using Water Escape. ’They probably haven’t gotten far.’

If he allowed them to lurk nearby and simply watch the fight, they could easily swoop in and reap the rewards once both sides were exhausted.

As a Great Demon Cultivator of the Eastern Demon Sect who had managed to reach the Late Stage of Golden Core, the Cyan Demon Ancestor was naturally not one for indecisiveness.

When push came to shove, he absolutely possessed the necessary resolve.

The Cyan Demon Ancestor decisively took out a Cow Horn Short Dagger and sliced open his wrist.

Viscous droplets of Essence Blood trickled out from the wound.

The Cyan Demon Ancestor had anticipated that the Feathered Whale cub would bring bad luck, but he never expected the resulting calamity to be this tenacious.

This drove him to a ruthless decision: he would use his own Essence Blood as an offering to perform a Demon Summoning for a Celestial Demon.

The Essence Blood of a Golden Core Cultivator was as heavy as mercury, rich with Essence Qi and Demonic Qi. The Cyan Demon Ancestor dipped his fingers in it and began to paint twisted lines of Demon Script across the deck.

As the Cyan Demon Ancestor began to chant the desolate Demon Summoning Scripture, the soldiers in the control cabin instantly felt a chill run down their spines.

A layer of darkness, thick as grease, began to ooze slowly from the Demon Script, giving off a nauseating sense of filth.

The Cyan Demon Ancestor directly snapped a concubine’s neck and tossed her body into the array.

Outside, the Profound Whale continued its relentless assault, causing the entire Flying Boat to shudder violently. But the moment the concubine’s corpse landed on the Magic Array, it was firmly stuck in place, devoured bit by bit by the viscous darkness.

After a few seconds, the concubine’s corpse had vanished completely.

The terrifying Demonic Qi made it hard for the Demon Cultivators in the control cabin to breathe, but they didn’t dare slack off in the slightest, lest the Ancestor casually crush them to death as another offering to the unknown Great Celestial Demon.

Although the Profound Whale was a Demon, it possessed extremely keen senses. It could feel a terrifying aura brewing within the Flying Boat.

This drove it to ram against the Flying Boat’s Defensive Spirit Light with even greater urgency.

Yang Jing had already piloted the Flying Boat several miles away from the battle using Water Escape. This was no short distance, but for entities like the Demon Sect Flying Boat or the Profound Whale, it was practically next door.

However, using Water Escape with a behemoth like the Flying Boat consumed an enormous amount of Yang Jing’s Magical Power for every mile traveled. It was as if he had replaced the Spiritual Eye Object, becoming the vessel’s sole power source himself.

Even with the Magical Power Zuoqiu Feng transferred to him, covering those few miles had still instantly drained most of his reserves.

A wave of immense terror washed over him from behind.

Yang Jing used his Water Escape technique to sense what was behind him, but all he could perceive was the Demon Sect Flying Boat still locked in combat with the Profound Whale.

This immense terror made him instantly abandon any thought of watching the life-or-death struggle between the Demon Sect Flying Boat and the Profound Whale from the sidelines.

He entered the Flying Boat.

"Go! Full speed ahead!"

Hearing Yang Jing’s command, the soldiers aboard the Flying Boat dared not hesitate for a moment. They immediately activated the vessel’s Restrictions to increase its speed.

"Ascend! Bring us up to just below the surface."

Even though the storm on the surface showed no signs of abating, Yang Jing no longer dared to remain in the same stretch of sea as that Demon Boat.

’Was that Golden Core Demon Cultivator bewitched by a Celestial Demon? Why else would he suddenly summon such a terrifying entity?’

To this moment, Yang Jing’s Sword Heart was still blaring warnings. The Celestial Waterfall Sword within his Dantian trembled uncontrollably.

In the waters behind them, a dazzling crimson light suddenly flared.

Unlike the searing heat of Fire Element Magic, this crimson light was filled with the aura of death and decay. It was immediately followed by the incomparably shrill, agonized cry of a whale.

"It’s the Seven Cities Profound Evil Demon Light!"

Zuoqiu Feng, after all, was a lady from a Noble Family with a long and storied heritage. Staring at the crimson light, thick with Demonic Qi, on the Water Mirror, she identified it at a single glance.

"That Flying Boat belongs to the Eastern Demon Sect. The Seven Cities Profound Evil Demon Light is incredibly malevolent. Once unleashed, it locks onto all living things within its range like a maggot burrowing into bone, and it won’t stop until its target is dead. If we were caught in its light within a mile, I’m afraid we’d have no hope of escape."

This demonic light continuously devours living beings to replenish its own power. The only way to escape its lock is to bombard it with Profound Light and deplete the Demonic Qi it contains.

The Profound Whale was struck squarely by the blast from the Seven Cities Profound Evil Demon Light. A massive wound, as wide as a water cistern, was instantly gouged into its enormous body.

Bright red blood instantly stained the entire area of the sea.

After devouring a massive amount of Blood Qi, the Seven Cities Profound Evil Demon Light shone even brighter as it relentlessly bombarded the Profound Whale.

The Profound Whale shrieked in panic, even gathering a massive amount of seawater to shield itself, but it was utterly unable to block the Seven Cities Profound Evil Demon Light.

After unleashing the Seven Cities Profound Evil Demon Light, the Restrictions on the Flying Boat dimmed in an instant, and the vessel immediately became immobile.

The connection between the Flying Boat and the Spiritual Eye Object had been severed. Most of the vessel lost its supply of Spiritual Qi, and its various Restrictions were all rendered useless.

The Demon Cultivators in the control cabin let out a huge sigh of relief. In truth, the fact that the Flying Boat had successfully unleashed the Seven Cities Profound Evil Demon Light—instead of its Spiritual Qi clashing and causing a catastrophic explosion—had already far exceeded their expectations.

They were about to say something when they were struck by the sudden realization that the Demonic Qi inside the Flying Boat had become suffocatingly dense.

"Ancestor! Ancestor! We’ve won! Stop the Demon Summoning!"

"Ancestor, withdraw your Divine Techniques!"

The heavy Demonic Qi, like insidious demonic insects, burrowed its way into the bodies of the Demon Cultivators.

The moment a sliver of fear arose in a Demon Cultivator’s heart, they were completely overcome by the Demonic Qi. Their insides were corroded away, leaving nothing but an empty husk.

One of the Cyan Demon Ancestor’s disciples, who had a slightly stronger Cultivation, roused his Magical Power and lit up a Profound Light.

He saw that the viscous Demonic Qi had already filled the entire control cabin. Tendrils of it had, at some unknown point, crawled all over everyone’s bodies.

The Cyan Demon Ancestor had once been a dignified-looking elder, but now, black vapor poured from his face, and torrents of Demonic Qi billowed from his eyes.

The disciple was scared out of his wits. ’This is clearly a sign of possession by a Celestial Demon!’

The Eastern Demon Sect was the most skilled at Demon Summoning among the Four Great Demon Sects, so it wasn’t unheard of for its members to be possessed by Celestial Demons. However, a case of a Golden Core Demon Cultivator like the Cyan Demon Ancestor being possessed hadn’t been seen in a century.

Even within a Major Sect like the Eastern Demon Sect, Golden Core Cultivators were the backbone of its power. Their Demon Skills were profound and their methods plentiful; an ordinary Celestial Demon could not possess one so easily.

"Heh heh heh... my dear disciple, go and bring me that Feathered Whale, and I will ensure your Demon Skills improve by leaps and bounds."

A somewhat unfamiliar voice issued from the Cyan Demon Ancestor’s throat, only to revert to his normal voice a moment later.

A moment later, the Cyan Demon Ancestor’s expression suddenly twisted, his teeth clenched in a furious grimace.

"Your master has been possessed by this Demon! Come and lend me a hand, and I swear I will teach you everything I know!"

The Cyan Demon Ancestor never imagined that he, the lifelong hunter, would end up being pecked in the eye by his own prey.

He feared that he had already suffered Demon Contamination not long after summoning the Yu Jing Water Demon. However, with his luck already mired in calamity, he had been completely oblivious.

"This is not the Demon Realm! If you push me too far, I will destroy this body myself! For a Celestial Demon like you to possess me so silently, you must be a notorious Demon from the Outer Realm. The Nine Heavens World will surely strike you down with the Nine Heavens True Thunder and annihilate you!"

The Cyan Demon Ancestor was, after all, a veteran Demon of many years. Even while being possessed by a Celestial Demon, he still intended to fight for control.

"Heh heh heh... you think you can fight me with those pathetic little tricks? An ant trying to shake a great tree. How laughable you are, so blissfully unaware of your own weakness!"