The combat strength of dragons had always been proportional to their age. Although they had a long lifespan, correspondingly, they needed a long time to grow.

However, the history of the Ashan world was almost entirely a history of war. Although a variety of races had evolved into all kinds of cultures, it also caused conflicts among the various races. Under these circumstances, if the dragons joined the other races to participate in their wars, it would inevitably cause many dragons not to have the time to grow strong enough.

Their reproductive ability was not high to begin with, and it could even be said that the number of dragons born every year was far fewer than the number of dragons that died in war. Over time, the age of the dragons that had been hired to join the various races was increasingly decreasing. Some dragons that were two to three hundred years old and had just reached adulthood might be intimidating to ordinary races, but it was naturally not enough if they met a powerful high-rank demon like Roy. This was why Roy and the others had not encountered any decent resistance when hunting all kinds of dragons, which made Roy feel that dragons were nothing much.

But in fact, when dragons crossed a thousand years of age, their power was absolutely astonishing and absolutely not to be underestimated. This was why Rafaro had been sparing no effort to resurrect and restore his flesh body.

And what Gem brought this time were thousand-year-old dragons that had survived many battles. There were thirty-two in total, and they were all gold dragons!

The dragon scales on these gold dragons were as dazzling as gold, shining under the sunlight. They were more than twice the size of ordinary dragons and almost as tall as those behemoths.

These thirty-two gold dragons were originally the guards of the Gold Dragon Queen. The wood elves had always been life-and-death allies with the gold dragons. Four years ago, Xeron and a group of demons had led an army to attack the Gold Dragon Queen. But this scheme had failed in the end, and the Gold Dragon Queen was still alive. This time, because Geru had died and the Sword of Frost was taken, the elves felt a deep sense of crisis, so when Gem led the troops out, the elves found the Gold Dragon Queen and borrowed her guards.

With thirty-two gold dragons as vanguards, hundreds of adult green dragons followed closely behind. The moment these enormous dragons flew, they covered the sky!

At this moment, Gem activated the power of the combination artifacts, Power of the Dragon Father, and an intense brilliance enveloped all the dragons!

Since it was called the Power of the Dragon Father, it naturally had a tremendous amplification effect on dragons. After this radiance enveloped all the dragons, as if Bloodlust had enhanced them, their bodies swelled.

The dragons let out cheerful roars, flapped their wings, and flew high into the sky. Then, under the lead of the gold dragons, they turned and began circling Ur-Hekal. After turning back again, the dragons lowered their heads and began to dive down!

After arriving not far above Ur-Hekal, dragons sprayed out dragon breaths into the city!

Flames, lightning, acid, the dragon breaths of three different attributes immediately ravaged the entire city of Ur-Hekal. The whole city plunged into a hell-like sea of flames, and countless demons began to scream.

The dragons did not descend directly into the city to attack. They knew that there were too many demons, and ants could bite an elephant to death. If they dared to land, the demons would definitely pile onto them to death, so they only circled and washed the land with dragon breaths.

Outside, the behemoths and siege equipment were bombarding the city wall, and the dragons were attacking in the sky. In addition, the elven rangers were borrowing the effect of Gem’s Archer’s Dream artifacts to shoot arrows like raindrops from afar. For a time, the demons in the entire city of Ur-Hekal were in a terrible situation.

Seeing the demons falling continuously in the city, the demon heroes in charge of commanding the battle became angry. They ordered the low-level demons to withdraw while dispatching their high-rank demons.

Whoosh! Whoosh! Whoosh! The high-rank demons in the city spread their wings and flew toward the dragons circling in the sky. On the ground, as numerous flame pillars erupted, high-rank demons with scythes and heavy hammers teleported out of the flames. They came to the location of the behemoths outside the city and swung their weapons at them.

The lower limbs of a behemoth that had been charging forward were cut off by several high-rank demons and fell to the ground with a bang. But before it could cry out, several heavy hammers slammed onto its head, sinking into it and smashing its skull into pieces.

Both sides had mobilized high-level combat forces, and the battle entered an increasingly fierce state. However, no matter how many forces the alliance army invested and how many demons they killed, there was still a steady stream of demons to supplement!

This scene caught the eyes of Gem and Zehir, and they were anxious in their hearts. They knew very well that there was probably a large number of Gates of the Abyss in Ur-Hekal, and the demon army could quickly replenish.

“We’ve broken the barrier. Is Raelag still not here?” Zehir asked worriedly.

But before he finished speaking, a voice suddenly rang out beside him. “No, Chief Raelag has already arrived!”

Gem and the others were shocked and could not help but place their hands on their weapons. But then they saw a hazy figure appear about two meters to their right. The figure gradually became clearer, and then a dark elven assassin wearing a grey cloak emerged.

The elusive ability of dark elven assassins was indeed worthy of its reputation. Even Gem and the others had not noticed when this dark elven assassin approached them.

Fortunately, the dark elves were not their enemies currently. On the contrary, they were now allies.

After appearing, the dark elven assassin said to Gem and the others, “Chief Raelag sent me to inform you that he has already led people into the city of Ur-Hekal. However, there are too many demons, and it’s not necessarily safe to turn invisible. Therefore, he hopes that all of you can intensify the attack and attract the attention of the demons as much as possible to create an opportunity for him to go deeper into the city…” “Understood!” Gem nodded expressionlessly. “I hope he won’t die in the hands of the demons!”

Hearing this, the dark elven assassin smiled in disdain and turned invisible again before leaving.

Knowing that Raelag was following the plan, Gem and Zyhir heaved a sigh of relief. They ordered to get as many troops onto the battlefield as possible and stepped up the offensive against Ur-Hekal.

On another side, in the north of Ur-Hekal, Raelag was walking cautiously with the assassins he had regrouped.

Ur-Hekal was built based on a massive volcano. All the alliance army could attack was merely the three frontal positions, which was a fan-shaped range of about 270 degrees. The north of the city had the volcano behind it, so it was impossible to deploy troops here. This resulted in the demons not defending this position after the siege started, creating the condition for Raelag to infiltrate.

In fact, Raelag had long been in position. After the barrier broke, he immediately brought the assassins into the city. Although the front battlefield had attracted the attention of the demons, this place was their lair after all. Raelag and the others could still see many demons running around the city along the way. Thus, they had to be exceedingly careful and move slowly.

Raelag was a warlock, but he was still a dark elf after all. It was the talent of dark elves to hide themselves in the shadows, so he actually knew invisibility. This time, he brought twenty assassins. After entering the city, he got the assassins to spread out and investigate in all directions.