The stone door closed silently behind him, unaware that all his attention was now on the gray shadow ahead. As the distance shortened, he could see more and more clearly, until he realized that it was not a step at all, but the remains of some great creature. The straight spine and crooked ribs fell to the ground, mistaken for a staircase from a distance. Next to the ribs, you can see the broken thick thigh bone, which has been blown apart by an unknown force, like a honeycomb, and is obviously unable to support the huge body. From the spine backwards, the bones become thinner and thinner, eventually turning into a sharp tail that is ten meters long, and from the spine forward, there are only a few broken cervical vertebrae. The wreckage came to an abrupt end, so Siegel didn't see the monster's head.

Behind the massive wreckage is a three-story cube building, all red, with a surface that appears to be made of crystal, reflecting a dazzling glow in the light. Each side of the cube is divided into nine pieces, an image that reminds Siegel of a Rubik's Cube toy. There was an open door on each side of the building, but only one of the doors was covered in scorching marks - some kind of hot flame could melt even the crystals of the walls. Siegel thought of Ellint's admonition and decided to go through the door and take a look.

The door is open to reveal that inside is a large hall with a marble floor and black pillars supporting the room. Underneath the pillars were heaped with gold and silver treasures.

Siegel stumbled into the room, covering his mouth in surprise or screaming hysterically. The dwarf had only said "you can be as rich as I am", and Siegel had already imagined it as best he could, but it was definitely not the scene in front of him. Gold nuggets of various sizes were piled on top of each other, from the corners of the walls to the ceiling, and jewels and jade were scattered all over the ground like fallen leaves in a late autumn forest—these were probably the dragon's collections, mostly from the hills and valleys, uncarved treasures. In addition to this, there are many works of art, decorations, and beautiful weapons. Maybe these are the collections of the "magicians", maybe the legacy left by the "dragon slayers".

Either way, these things are close at hand, and you can collect them.

Siegel knelt on his knees in the middle of the hall, unable to utter a word. He was so excited, his heart was beating wildly, but he still felt that his mind was dazed and he couldn't breathe in enough air. Great wealth far beyond his means was tempting him—not to deprave and wicked, but to lose him. The brilliant light of gold and silver shines on the body, and it is as fascinating as the holy light.

A sense of dread burst from the depths of his soul and gripped Siegel's throat so tightly that he suddenly couldn't breathe. The brunette dropped the light rod and staggered towards the door, until he was no longer illuminated by the light of the treasure and plunged into the darkness, and then felt the "rope" around his neck relax slightly. Siegel breathed greedily in the air, re-experiencing the simple bliss of being alive for once, and then retched on the ground.

Thankfully, he hadn't eaten anything, so he hadn't made a mess around him. After a while, this physiological reaction stopped, and he opened the water bladder and took a few sips slowly. After a pause, Siegel burst out laughing, initially quietly, then into laughter. This is not because of the ecstasy of gaining great wealth, but because of the stupidity of laughing at himself who almost lost his heart.

When he re-entered the hall, he had already controlled his emotions, he would still be excited and happy, but not crazy again. He picked up the gems from the ground and let them slide through his fingers like a waterfall. Listen to the crisp sound of hitting the ground, and then only exclaim, "This is much better than the troubadour singing about the king's wealth!"

Since he traveled lightly when he came up, Siegel left all the cloth bags down the mountain, so he couldn't bring much with him. He looked left and right, and could only find unusual treasures that were easy to carry. He stepped on the gem and, according to his preference, pulled out several weapons buried inside. To his disappointment, several of the weapons were ceremonial ornaments, made of rare and expensive materials, of great artistic value, but not made for practical use. There were two two-handed swords that were of good texture, but Siegel couldn't carry something so cumbersome. Only a pure black dagger caught his mind. The dagger was made of no metal, nor was it a crystal gem, just a black rock with no sign of polishing the blade. But Siegel brushed his fingers over the surface of the dagger, and even if he didn't touch the sharp spots, he would still be cut through the skin and bleed blood.

"What a sharp dagger," Siegel exclaimed. There was a soft scabbard that matched it, and it was not clear what animal skin it was made of, but it was just safe to be injured by the dagger. Siegel pinned it to his belt and threw away the rest of the items - there was a second floor to look at.

The second floor was a completely empty room except for the stairs going up and down, and there was nothing in it. There are no windows on the walls, no chandeliers on the ceilings, and the floors are polished like mirrors and spotless. Because there was nothing, Siegel didn't stop at this level and climbed to the top floor.

It's a combination of a study and a bedroom. On one side of the wall lay three bookshelves filled with books of varying sizes and thicknesses, and a comfortable sofa and a set of copying desks were right next to them. On the other side was a single bed, a thin quilt made of silk was lifted, and a pillow embroidered with gold thread fell into the gap between the bed and the cupboard. It's clean, as if the owner has just left. Siegel couldn't help but exclaim, "Anyone?"

Not even a response.

"Well, stop scaring yourself. Siegel looked around, then opened the next few doors and looked at them—the kitchen, cloakroom, pantry, and restroom. He was sure it was empty.

"The mages of the Guild are not here yet, what can I do?" Siegel scratched his chin and thought about it. He used the toilet first, then found some bread from the kitchen, dipped it in honey and ate it, it still tasted good. There must be some power that can preserve these things and keep them from the harm of time. Siegel doesn't understand the principle, but it doesn't affect his use. Then the brunette unwrapped the quilt and tied the cover with rope, ready to use this as a pocket.

He inadvertently touched the pillow, causing it to fall through the crack in the bedside table to the floor, making a crisp crashing sound. Siegel was very strange and picked up the pillow. He saw a metal key on the ground, strung with silver thread into a necklace, which should normally be hung around his neck.

The key was unusually cold and uncomfortable to hold in your hand. It is decorated with dwarven characters, which roughly mean "heart" and "door lock". Siegel's Elven language is already very good, the dwarven language is still a little worse, and the key is a rare dwarven dialect, and Siegel can only recognize the approximate meaning.

"Having a key means having to pick the lock. Siegel took the key and looked around, and for the first time realized that it was exactly the same feeling that he couldn't find the key to pick the lock and couldn't find the lock that matched the key. He said to himself, "Where's the lock?"

As soon as he finished speaking, a little light appeared in the void in front of the key, fainter than the light of a candle, about the shape of a keyhole. Curious, Siegel poked the key in, and then twisted it in the air. The point of light elongates into a thin strip of palm length, and then extends to the sides. Siegel held the key and watched as the light shifted until it formed a shimmering frame in the air. Inside the box is a separate space, about an arm's deep, where two golden books, two small pouches, and two rings are placed.

Siegel pulled out two books and found them identical, with "A Study in Magical Construction" written on the cover, and the title page with the signatures of two mages - Lynch and Ossos. He tossed the book aside, and found that the floating box would change position as the key moved, and he could take things in and out at will. Siegel just thought it was so funny that he threw a few books from the shelves. He wanted to close the "personal space" and tried to point the key in the middle of the box. Sure enough, the space froze, then shrunk into a point of light, exited the tip of the key, and disappeared into thin air.

"What a good thing!" said Siegel, satisfied, and hung the key around his neck and placed it with his twenty-sided dice. Then he carried the silk bag to the ground floor, first filled the gap in the space with him, and then filled the bag with some random things.

At this time, the rod burned to the end, and it could no longer emit light, and the surroundings immediately became pitch black. Even a brilliant gemstone cannot shine in a dull environment. Siegel took out the last of the lighting rods from the bag and was about to use it when he suddenly saw several bright lights suddenly appear in the cave outside the Rubik's Cube.

He immediately became alert, it could only be an outsider entering, perhaps a mage from the Guild. Siegel didn't have time to run out of the Rubik's Cube, especially when there was no lighting at all - it was easy to fall and make a sound of leaking his whereabouts.

Siegel thought for a moment, hid behind the nugget, covered his head with a huge gold cup, and then weakened his breathing. The light outside was getting closer, and he heard a few exclamations that seemed to praise the magnificence of the skeleton. There was the footsteps of three people, and the sound of bats flapping their wings.

The footsteps stopped outside the Rubik's Cube, and then there was the sound of chanting incantations like singing. The bat chirped and flew closer, and then the sound of lightning and thunder and the exclamation of a man were heard. Siegel held back his curiosity and remained motionless, just listening intently. After a while, there were explosions, loud noises of lightning, and the sound of howling wind. A skeleton walked into the right door empty-handed.

Then came three robed spellcasters, all with their staffs and swirling lights around them, slowly stepping onto the treasure-filled hall. Several people were also touched by this great wealth, trembling, weeping, and laughing loudly. They use magic to detect dangers around them, but they forget to detect living things. Siegel watched them rummage through the treasure. In order not to be detected, he completely held his breath.

Above the sea, Siegel can hold his breath for a long time to catch a pearl, or find a valuable sea cucumber, or just to simply demonstrate his diving skills. After his physical strength and endurance were trained, his breath-holding time became longer.

The three guys searched for a while, put a lot of exquisite gems in their pockets, and enjoyed the excitement of making a fortune. One of them walked deeply, rummaging through things as he approached the stairs. He kept his head down, and his eyes were full of colorful gold and silver jewelry. It wasn't until the stairs hit his back that he woke up.

The man looked at the other two, then silently climbed the stairs.

A few minutes after he left, the other two finally realized that something was wrong. They shouted, "Liar, bastard, traitor!" and rushed forward with their wands raised.

Siegel didn't know what was going on above, but faintly heard the sounds of arguing and fighting. Flashes of light came from the gaps in the stairs, and there were loud curses, thunderous roars, and painful wails of injuries.