Lin Wu thought for a moment and figured that he had three more hours until the morning. He could very well go and return back to Shirong. But then decided against it. There were still a few things he didn't know and wanted to be on the safer side.
"Hmm, now that I have the maps, I don't need to crawl all the way there, I can just tunnel my way to the courtyard." Lin Wu said to himself.
He then went back inside the Lu clan's compound and dug into the soft ground hidden under a bush. He then turned on the navigation and put Shirong's courtyard as the destination. Now that he had the keys for both of the formation arrays he was able to create the shortest route which was a straight tunnel.
My 3rd book Epic Of the Demonic Sage is out.
https://www.webnovel.com/book/epic-of-the-demonic-sage_19737288305094505