All the people in the castle had run away, leaving it empty.

"All of you, guard the entrance. No one is allowed to enter."

Merlin said to Shiya and the others. He was very curious toward the royal family's key, so he naturally would not allow anyone else to see it.

Although Shiya hesitated, Merlin was the Deputy Team Leader. Furthermore, he had become a full-shifter and even Doomsday might not be his match. She naturally did not dare to go against Merlin's orders and guarded the entrance with Iza and the others.

"Ririya, take me to the White Rajah's secret chamber."

Merlin knew that some aristocrats liked to hide treasures in the secret chamber. If the White Rajah hid the key, it would be in the secret chamber.

Controlled by Merlin's Mind Power, Ririya dazedly took Merlin deep into the castle. They passed by several corridors before finally arriving at a wall, seemingly a dead end.

"Rumble."

The mechanism on the wall activated and a path opened on the ground. Below were stone stairs leading toward an unknown place.

"Looks like the secret chamber is just below here."

Merlin was not afraid. It was very safe with Ririya leading the way. Besides, with his current strength, no obstacles would pose a problem.

This stone stairway was very long and they walked for half an hour before finally arriving at the secret chamber. Along the way, Merlin discovered several traps but with Ririya's lead, none of the traps were activated.

"No one can open this secret chamber. It was my father who brought me here last time."

The stone door in front of the secret chamber did not have any mechanisms and could only be opened by the White Rajah. Even Ririya was helpless.

"We're already here. That's not a problem at all."

Merlin looked at the stone door. With a roar, his body began to shapeshift. However, it was only a portion of his body. A narrow passage like this could not accommodate Merlin's huge body after full-shifting.

"Boom."

Merlin's morphed arm slammed the stone door. He was now a full-shifter. Even if he only used one-tenth of his strength, he was much stronger than the White Rajah.

Thus, with just one hit, cracks appeared on the stone door like a spider web, rapidly spreading outward.

"Crumble."

Finally, the stone door collapsed into gravel, falling to the ground and revealing a wide secret chamber.

"Go in."

Merlin brought Ririya into the secret chamber. The secret chamber appeared spacious, with boxes of precious stones placed around.

"Who would've thought that the White Rajah had this hobby?"

Merlin looked at the precious stones curiously. Why would the great White Rajah keep these things?

"Father prepared these for my dowry. He told me before when I get married, he would prepare the largest dowry for me."

Merlin noticed that Ririya's expression seemed unstable as if remembering the White Rajah would cause her to awaken from Merlin's Mind Power's control at any time.

Merlin shook his head. The White Rajah may be very harsh and even cruel to others but he provided for his daughter as much as he could.

The gemstones in this secret chamber were worthless to Merlin. He was not looking for these sparkling, useless gems but the royal family's key.

Something that the royal family was looking for would not be simple. Otherwise, they would not specifically ask Merlin to find it.

"It's not here. There's no key at all."

Merlin had searched the entire secret chamber but did not find any trace of a key. Could the White Rajah have given the key to Doomsday?

"If he gave it to Doomsday, then that complicates things."

Merlin thought about the report regarding Doomsday. When Doomsday first rose to power, the royal family had sent three mid-tier almighty beast full-shifters but none of them returned. From then on, he climbed to the top of the greatest rebel army and even now, the royal family did not dare to make any move against Doomsday. It showed how terrifying Doomsday was.

Furthermore, the information regarding Doomsday was very vague. Since Doomsday rarely appeared, it was unknown if he had a mid-tier or high-tier almighty beast bloodline or was a Host.

Phantom's Intelligence Team even had a long-term mission to find out details regarding Doomsday. However, up until now, it had not been successful. Furthermore, Merlin was also slightly apprehensive of Doomsday.

"Ririya, have you ever seen the White Rajah obtain a key?"

At this time, Merlin could only ask Ririya. However, he knew that she would not know anything. The White Rajah rarely told Ririya important matters.

"Key? I've never seen one before. However, the last time Father brought me here, he told me that he keeps some of the most important things in a secret place in the chamber."

"Oh? Where is it? Take me there."

Merlin's eyes brightened. He had never thought that Ririya would know something so important. The White Rajah trusted his daughter the most to have told her such important information.

Ririya went to an inconspicuous box and then tapped it nine times.

"Click."

Under the box, a small hole suddenly appeared. It seemed to hide something inside.

Merlin did not hesitate and stepped forward. He searched inside with his hand and quickly found a wooden box as well as some precious materials. Upon closer observation, he found that they were some Nourishment Pond formulae.

Besides that, there was also a letter to Ririya telling her that the White Rajah had hidden a large fortune at a certain place. There were also the materials for a Nourishment Pond and a captured almighty beast's will. If Ririya wanted to have power, she could rely on these things to become a Host.

These were all that the White Rajah had left for Ririya.

"The White Rajah is a good father."

Merlin quietly slotted the letter in Ririya's clothes. He gave the Nourishment Pond formulae a cursory look and memorized them before placing them on Ririya. These were all for Ririya and Merlin had no intention of keeping them.

As for the exquisite wooden box, the White Rajah did not mention it in the letter, proving that it was placed here at the last moment. It should be extremely important.

Thinking of this, Merlin immediately opened the wooden box.

When he opened the box, a dazzling light shot out. Merlin's eyes narrowed. "A gold key?"

In the wooden box was an exquisitely-made gold key.

"A gold key. Could this be what the royal family is looking for?"

Merlin gently picked up the gold key in the wooden box. The key was quite heavy and cold but what surprised Merlin the most was a faint residual aura, which seemed to excite the Blood-eye Dragon's will deep in his Awareness.

"There's more to the gold key that meets the eye!"

Merlin did not know what this key was for but if the royal family was after it, it was not ordinary. He had to study it carefully.

Thus, Merlin kept the gold key and prepared to leave the secret chamber when it suddenly shook.

"Rumble."

The large sound of an impact above the ground spread to the secret chamber. The secret chamber seemed like it would collapse despite being such a long-distance underground, showing how terrifying the shaking on the surface was.

"Did Doomsday personally come?"

Merlin narrowed his eyes. Although he was apprehensive toward Doomsday, he was not afraid.

"Let's go up and see who it is."

Merlin grabbed Ririya and strode out of the secret chamber.