Learning to navigate the directions in this library was a complete madness worthy of a few geniuses, and as expressed in Apollo's ancestor's letter, if a wizard revealed the way to navigate within the library, that wizard could never enter the library again.
So there were very few ways to discover this secret. One of them was to obtain the method through the legacy of a wizard who consciously knew they would never enter the library again in their lifetime. Another way was to follow the traditional method, that is, to discover it on your own. However, there were also other options to learn this "well-known" secret. For example, some books in the library described the way to "navigate" it within their pages. Nevertheless, for someone with no knowledge of the magical world like Apollo, this information was unknown and therefore nonexistent.
The dreaded "navigation" method was as follows: First, you had to get a code from the seller, which was completely random and changed every time you entered the library. For example, in Apollo's case, the code was AZC w25. The second step was deciphering the code, which was the most complicated part. But according to what was written in Apollo's ancestor's letter, it worked like this: The first level was as follows: A: walk one pavilion forward, Z: walk 27 pavilions forward, C: walk 3 pavilions forward. The second level worked by changing the turning directions: w: do not turn, 2: turn twice, 5: turn five times. Therefore, if you combined the two levels, the key to finding the children's book pavilion was to walk one pavilion forward and turn your body twice, which meant that as a result, you had to move 27 pavilions back. Then you had to turn your body five times, resulting in moving 3 pavilions to the left. Considering that all turns were always clockwise, and Apollo's code didn't initially require him to turn, he always started by turning his back to the seller.
As for the distances, it really didn't matter because once you completed the first sequence, you would find yourself in an infinite maze until you managed to find what you were looking for. Consequently, one could really end up lost in this library.
Mentally preparing to start the challenge, Apollo proceeded to complete the first pavilion. Each "random" pavilion in this library was exactly identical, consisting of exactly 27 shelves on each side, forming a corridor filled with books. The shelves were four meters high, so you had to use a stool that could always be found in each aisle to reach the upper books. The reason why wizards called these identical pavilions "random" was that the seller changed the books that appeared in these pavilions every night. Therefore, the books in these pavilions were random, and the only way a wizard could find a particular book in this library was by knowing the actual pavilion of the book, and for that, you had to use the codes provided by the seller.
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After finishing the first pavilion, Apollo came across a circular table with four very nice leather chairs and an abundant amount of food, drinks, and supplies that one might need if they felt like reading. Each of the chairs at the circular table pointed to a corridor full of shelves, which was another pavilion, and at the end of it, you could see exactly the same circular table with its respective chairs. Once Apollo reached this point, he had completed the first sequence and was in the infinite maze of the library.
Therefore, Apollo turned his body twice clockwise to head back down the aisle he had come from. At the end of the pavilion, there was no longer the seller or the library door. The only thing that could be found was the same circular table from where he was, reminding the young man that he had successfully completed the first sequence and was now in an infinite maze.
Apolo ignored the circular tables as he passed the 27 pavilions indicated by his code. After achieving this, Apollo turned his body five times clockwise again and walked the last 3 pavilions until he finally found what he was looking for: the children's book pavilion!
The entrance to the children's book pavilion consisted of a wall with a door, unlike the random pavilions. The door in the yellowish wooden wall was quite small and seemed to have been drawn by a child with crayons, so it was somewhat crooked and had no handle. Therefore, at first glance, the door looked more like a drawing than an actual door.
Apollo assumed that the drawing could be opened if he pushed it, and when he tried, it turned out that the drawing moved, revealing a small tunnel formed by books. From the entrance of the tunnel, the end of it could not be seen, but the curious young man, eager to see what the inside of the children's pavilion looked like, crouched down and began to crawl into the tunnel with effort.