The entire third floor of the tower was indeed a large mage laboratory, as the female zombie embedded in the bedside had said.

A pair of concentric rings are painted in the center of the floor of the laboratory, and inside these concentric rings are magical hexagrams, formed by two triangles overlapping on the front and back.

Barrett knew that before the Magic Empire, mages used the six-pointed star as the basis to draw circles and channel magic, which was also the most fundamental sign that distinguished the old and new generations of mages.

The ceiling of the laboratory also has a magical hexagram and a pair of concentric rings, but the magical hexagram at the top is so large that it occupies almost the entire top and encloses the concentric rings.

In addition, there are countless magical symbols of various shapes that are depicted inside and outside the magic hexagram. They flickered and flickered like breathing, and even though their owners were long gone, they continued.

'Magic belongs to no one, and mages are only their spokesmen. Suddenly, Barrett thought of what the little mage Krees had said......

On one of the three walls of the laboratory is a long line of alchemy counters. There are many glassware, metal stands, crucibles, scales, grinding pestles, and other miscellaneous things. There were even three candles, long and two short, burning quietly in the center of the alchemy counter, one of which glowed pale blue, while the flame of the other two candles was dark purple.

Above the alchemy counter hangs an old pendulum and a silver-framed portrait of the Five. In the center of the portrait a pair of richly dressed men and women sit on chairs, while behind them stand three young men of about the same size.

Only one of the five had clear facial features, while the other four had only a shadow on their faces. The only young man with a face stood on the far right of the group, resting his right hand on the back of the chair in front of him, and with the other hand he seemed to be holding something, but he didn't draw it because of the chair's obstruction.

The young man's face was still green, but Barrett could tell that he was the master of the tower.

At the left end of the alchemy counter, there is also a normal skeleton with a carving knife in its hand. The skeleton kept staring at the medium-sized hourglass at the end of the counter, and when the yellow sand in the hourglass was completely dripping, the skeleton would immediately flip the hourglass over and cut a knife into its thigh bone. The rest of the time, it just stood there.

The skeleton didn't seem to notice Barrett's entry, or maybe it didn't care. It just focuses on its own business and is not disturbed by anything external.

The other two walls of the lab leaned against rows of cabinets of varying heights, containing many bottles and jars of different colors, as well as strange types of magical materials.

When Barrett saw that the skeleton ignored him, he told the little ghost to wait at the door of the laboratory and enter the laboratory alone.

He moved slowly along the wall like a gecko, as far away from the central circle as possible. He's not a mage, and he doesn't know any of those magic symbols, so God knows what the consequences will be if you accidentally step on them.

Thankfully, the tower wasn't a mage tower in the traditional sense, but just a spellcaster's dwelling inhabited by the Lich, otherwise Barrett would probably have been bombarded to slag before he could enter the interior.

The first cupboard he approached was filled with bottles and jars. The inside of one of the pale cyan bottles was an apple that shimmered golden.

The golden apple is suspended in the center of the bottle, and the veins of the peel are clearly visible. The apple was much larger than the bottle, and Barrett didn't know how it was put in the first place.

Golden things have a natural, irresistible allure for adventurers. Barrett first picked the bottle out of the cupboard and examined it in his hand.

No matter how he shook the bottle, the golden apple inside was always suspended in the center, as if it had been nailed there by some invisible force. But at this moment, the stopper at the mouth of the bottle suddenly fell off for some reason. Immediately afterward, the golden apples in the bottle began to shrink, wither, and decay at a speed visible to the naked eye.

In the seconds that Barrett hurriedly picked up the cork and stuffed it back in, the golden apple had become a pile of black powder at the bottom of the loose bottle.

Oh my God, damn it, I really shouldn't have shaken my hands so much, Barrett secretly chagrined. Who knows why the master of the tower didn't keep the bottle tightly corked? Isn't he worried about this happening in front of him?

After cursing a few words, Barrett still put the bottle in his hand into the spatial ring. Maybe that pile of black powder will be worth a lot of money, maybe that golden apple will be made like this before it can be used. Magic, who knows.

After this lesson, Barrett was extremely careful and handled with care when taking other bottles and cans, for fear that something would make a mistake and the gold coins he got would disappear.

There are a lot of things in the two rows of cabinets on this wall. Several bottles of unknown liquid, unknown whether they were potions or poisons, one of which was still foaming like rye beer, an empty bottle that seemed to have nothing in it, but when Barrett hesitated to take it, the shadow of something suddenly flashed in the bottle, half a jar of the withered heart of a small creature, the heart was about the size of a pigeon, a whole bottle of seeds of an unknown plant, the pattern on the shell of the seed was like an eye, and of course, it could be the eyeball of some strange creature......

A jar of petals of many colors, which looked like flower tea, but Barrett would never dare to brew a little of it; a small box of dark blue scales, the luster on the scales was no different from that of the high-quality magic crystal, Barrett was very much looking forward to the value of this thing; a roll of leather of unknown creatures, tightly wrapped in cotton cloth, and placed in a small bucket at the bottom of the cupboard; a handful of rather ordinary-looking beards, lying at the bottom of a jar, this thing was also a magic material? Barrett was a little skeptical......

After scavenging all the contents of the wall, Barrett took a short break and continued along the wall.

As he walked past the skeleton, the other party ignored him, just staring at the hourglass in front of him. Barrett wanted to kill the skeleton and snatch the hourglass (he suspected that the hourglass would be worth more), but after thinking about it, he didn't.

Is it sympathy, pity, or something else? He couldn't say it himself.

There were also some things on the alchemy counter, but Barrett didn't dare touch them at will. Unlike magical materials, many half-finished alchemy items are extremely dangerous, and Barrett can't guarantee that the lich will leave it there after a certain experiment is halfway done.

Walking past the alchemy counter, Barrett walked to another row of cabinets containing magical materials. Most of the magic materials here are placed directly on the shelves inside the cupboards, and there are no containers on the outside.

The first thing that caught Barrity's eye was something that made him feel vaguely familiar.

......