After another wave of soul attacks, Gray finally entered the secret room.

This is a secret room of only about 100 square meters, and there are several stone platforms in it, and some bottles are placed on each stone platform.

Some of them are crystal bottles with words on them, which are engraved on the crystal bottles, and even after a long time, these words are still clearly visible.

Gray walked over and looked at them one by one.

"Advanced Healing Elixir."

The label on the first crystal bottle had already made Gray's eyes light up.

High-grade healing elixirs, powerful potions that are several times more powerful than ordinary curative potions, have extremely strong healing effects, and are extremely precious, even if they are rarely encountered in auction houses.

Only the family that owns the alchemy master will have a small amount, and generally do not sell it to the outside world, but keep it for their own use, or give it to some close ally families.

In the final battle with the Flame Kingdom, when Gray was devastated, Sophia fed him this healing potion.

And the effect is also significant, even if he is so seriously injured, after taking the healing potion, he also regained some combat effectiveness, and joined forces with Sophia to injure the Wild Blood Warriors of the Flame Kingdom.

In this secret room, there is such a potion, it is conceivable that in this secret room, the overall grade of the potion must not be low.

He took the high-grade healing potion and looked at it, but the next moment he couldn't help but be disappointed.

The bottle of high-grade healing potion was empty, there was not a single trace of liquid in it, only a small dried stain at the bottom, it was obvious that this bottle of high-grade healing potion had been wasted, and it had been a long time for its liquid to volatilize and disappear.

Gray looked at the other bottles on the stone platform.

"Ink Stone Elixir, Purple Red Elixir, Three-color Elixir ......"

There are many types of potions on the stone platform, and most of them have never heard of the name of the potion, but if they can be put together with high-grade healing potions, you can guess that the value of these potions must be extremely high.

However, it is a pity that these medicines, like high-grade healing medicines, are also volatilized and have no longer the slightest effect.

"Limb amputation potion......"

Gray saw another potion, and Gray was no stranger to the name of the potion.

He once cut off the arm of Edgar, a descendant of the Valen family, and when he met the other party in the palace, the opponent's arm was not only connected, but it did not affect his flexibility much.

I heard that the other party spent a lot of money to ask the royal alchemist master to refine an extremely precious magic potion and connect that arm.

If Gray's guess is correct, the magic potion that the other party asked the royal alchemist to refine should be this limb potion.

The amputated limb potional is not to convince the use of this medicine to be able to regenerate the severed limb, but this potion, which has a strong healing effect, just by piecing the severed limb together, and then pouring this potion, it can connect the severed muscle tissue, nerve fibers, and so on.

"It's a pity...... Well, this bottle is not volatile! ”

Gray was lamenting that another precious bottle of potion had lost its effect, but when he looked into the crystal bottle, he couldn't help but be surprised.

In the crystal bottle, there is a large half bottle of turquoise liquid, verdant and dripping, like the branches and leaves of a plant.

"It should be that this bottle is so well sealed that this liquid can be retained, but after all this time, does it still have medicinal effects?"

Gray put this bottle of amputation potion into the purple ring, although I don't know if it has any medicinal effect, but I can try it when I really encounter this situation in the future.

He continued to look at the other potions, and saw many potions that he had never seen before, but he never found any potions again.

He looked at a stone platform next to him.

On the stone platform next to it, the number of crystal bottles stacked is much less, but the volume is also much larger, more than ten times the volume of the previous crystal bottles.

"I can't read the handwriting!"

The text on these crystal bottles is not engraved, but pasted in the form of labels, which is too old to make these words blurry and difficult to read.

And the situation in these bottles is basically the same as just now, there is no liquid anymore.

"Ice Tiger...... Blood! ”

Finally, he saw a fairly clear text marking, and after careful identification, he recognized the words on it.

The bottle should contain the blood of a blood beast like the Ice Spirit Tiger.

For this kind of blood beast, Gray had seen it in the book, this kind of blood beast was a desolate level blood beast of the Cold Tiger sequence.

"In other words, these vessels should all contain the blood of blood beasts!"

The crystal vessels placed on this stone platform are exactly the same size and shape, and they should all hold the same type, so Gray estimates that these should be vessels that contain the blood of blood beasts.

"Dark Worm, Wild Cow, Wind Roaring Leopard......"

Gray saw some bottles that could still be seen clearly one after another, all of them were marked with the type of blood beasts, these blood beasts were not low-level, the lowest were all barbarian-level, and the highest was at the wilderness level.

Instead of finding one that was so well sealed and preserved as before, Gray looked at the other stone platforms.

I found a few stone platforms one after another, and there were a lot of crystal vessels, either containing magic potions or blood beast blood, but both the potions and the blood evaporated and dried up.

Finally, he looked at the only stone platform that he hadn't yet inspected.

At the last stone platform, there were only two bottles, the size of which were about the size of a normal magic potion bottle, but the material used was not crystal, but a yellow metal.

The markings are engraved directly into the yellow metal bottle, the first yellow metal bottle Gray looks at.

"Storm Falcon Blood ......"

When he saw the words on the yellow metal bottle, Gray's pupils suddenly shrank.

The Storm Falcon, a bird and beast that soars in the sky, is bound to be accompanied by a storm wherever it passes, and is known as the Storm's Spokesman.

Of course, the main reason why Gray's mood changed so much was that this blood beast was a king-level blood beast, which meant that the blood in the yellow metal bottle was the blood of a king-level blood beast.

Needless to say, the blood of king-level blood beasts is difficult to obtain, and Gray was fortunate enough to encounter the auction of king-level blood beast blood at the Hobbs auction in the mercenary city, and it cost 1.42 million to buy the next one.

Not to mention the price spent, the most important thing is that an auction of the blood of a king-level blood beast like this is almost impossible to encounter in an auction house.

The reason why he was able to encounter it at the Hobbs Auction House in the City of Mercenaries was mainly because the King of Mercenaries had just hunted a king-level blood beast, and the corresponding blood beast had a lot of blood, and under normal circumstances, it was difficult to encounter this kind of blood beast blood in the auction house.

"It's not in a crystal bottle, it's in yellow metal, obviously there are long-term preservation considerations, will the blood in it still be intact?"

Gray reached out and picked up the yellow metal bottle with the word Storm Falcon on it, shaking it slightly, and suddenly there was a liquid sound, apparently the blood in it was still in a liquid state.

He grabbed the bottle with one hand, pinched the cork with the other, and rotated it vigorously.

It took a small amount of effort to twist the cork, which showed that it was extremely tightly closed.

Soon, the cork was unscrewed and taken out, and suddenly a strong smell of blood came, and at the same time, there was a faint fragrance, as if the blood was mixed with the essence of flowers and plants, with a trace of fragrance.

"There is no corruption!"

There is a lot of blood beast blood that has been taken for so many years, and for blood beast blood, Gray naturally has a certain judgment ability, and he immediately judged that this bottle of blood beast blood was not corrupt.

As for why it has the fragrance of some flowers and plants, this is very understandable, the blood beast whose strength has reached the king level can be said to be full of treasures, flesh and blood, for ordinary blood warriors, there is no difference from concentrated potions, naturally, their blood will also have some characteristics that are close to magic potions.

"Sheep Blood ......"

Gray looked at the blood in another metal vial.

It was the blood of a blood beast called the Goat, and like the Storm Falcon, the blood was kept intact, but Gray had never seen anything about it in a book.

However, it is not difficult to deduce some of the characteristics of this sheep from the Storm Falcon, if nothing else, this Sheep is likely to be a king-level blood beast, after all, it is placed with the blood of the Storm Falcon, and it is also dressed in extremely precious metal.

"Could there be something more precious hidden in the Hidden Compartment?"

After inspecting all the stone platforms, Gray began to pound and pound throughout the room.

Although the contents of this room were already extremely precious, he still couldn't help but carefully inspect the entire room with a glimmer of hope, maybe there were even more precious things hidden in the secret compartment.

Knock, knock, knock!

Originally, it was just in case, but what he didn't expect was that with Gray's continuous knocking, he actually knocked on a hollow sound at a wall position, which was behind a square stone with a side length of about ten centimeters.

"What the hell is going to hide like this?"

There was a hint of heat in Gray's eyes, such a precious thing as the blood of a king-level blood beast was placed directly on the stone platform, and what kind of precious thing would it be that would be stored in the dark grid with great care?

Gray took a dagger from the purple ring and slowly stirred it up against the gap in the square stone.

The square stone was slowly pried out, and finally fell to the ground with a click, revealing the space it had blocked inside.

Gray looked inside, but couldn't help but be stunned, the space behind the stone was empty, and there was nothing.

Gray looked inside without giving up, and found that there was nothing inside, and there was a metal plate embedded in the innermost side, with many cumbersome rune patterns on it.