"Encryption?"
Odysseus did not fully understand what Jia Xiu meant, but he could barely grasp the idea.
He could understand because all manner of encryption spells were fairly common in the magical world.
Treasure chests, display cases, spires, vaults—encryption spells could be found in all kinds of places used to hide treasures.
In fact, encryption spells had often evolved beyond simply being placed on locks or scrolls to protect things people did not want others to obtain or learn.
They had become a stage for displaying creativity and spellcraft.
People deliberately designed encryption methods that were extremely complex and tricky, yet often impractical, specifically for others to crack. Those doing the cracking also tacitly followed the rules, decrypting only and refusing to use underhanded methods.
It was like a broken chest that could be split open with one swing of an axe, yet someone insisted on studying the exquisite spell-enhanced lock attached to it.
Creating encryption puzzles and cracking them had become a highly "tasteful" hobby among spellcasters.
Much like making art or playing chess.
What Odysseus did not understand was what it meant to use an encryption spell to conceal an entire plane.
That did not sound like human language.
Never mind what kind of spell could cover an entire plane; after all, some planes were only as large as a few rooms.
If what Jia Xiu said was true, then this spell was being maintained in the space between planes.
And it had most likely been maintained for a long time. The regions between planes could only be sustained through an unceasing supply of mana. Such an ability far exceeded Odysseus's understanding of what any spellcaster could achieve. No one could do it.
Then it was most likely the work of some Main God—a Main God from another