This is a three-dimensional map, also known as a stereogram. Such things only exist in The City and can only be created using computer technology, yet Ling Tianyu managed to do it using Supreme Spell.
The spell itself isn't very advanced, but there are countless threads involved. This is no joke. The sheer number is beyond imagination, and remembering them accurately is not something ordinary people can do.
The three-dimensional map appeared in the entire room, where Ling Tianyu stood observing it carefully.
Northern Ming Jingyin was also watching.
"So many threads that can't be touched, we can't go in," said Northern Ming Jingyin. "We can't destroy them either; they'll be discovered immediately if we do."
"Elder, I don't think we can get in."
"Every layer of the Scripture Hall has threads, forming an impenetrable wall."
Ling Tianyu stroked his chin and leaned against the table, observing.
