Wu Cang took Wu Cang and left as Wu Jin thanked Lin as he too left. Looking at the few moment back when Jin one shot that kidnapper Lin realized that even if he was a Genius and strong but for some people he was just a ant and nothing more so he had gain strength and power if he wants to save and protect his loved ones from the war with the other realm.
Lin got to his room and closed the door as he sat at a meditative stance on the bed and took out the spirit grass as he started to absorbed its essence. After a week, A loud explosion was heard as Wu Jin and Cang rushed their as they saw that the sound was coming from Lin's room as they sensed a breakthrough Earthly bounds as Jin said "that boy is truly a genius in a week breaking through the Earth light realm 8th rank and reaching a new major rank" and they left as they told all the people to not disturb Lin in his Cultivation.
In the second last last day of the month, A bright light rushed from Lin's room to the sky as Cang and Jin looked at the light pillar as Jin laughed heartily and said "hahahaha! He is not a genius but a monster. In just almost a month breaking through from Earth light to Earthly Bounds and now Earth King 3rd rank he is a real monster" but Cang just looked at it and kept his calm as he gave a simple smile and said "Truly a Monster".
After a while Lin came out after strengthening his Earth king realm as he saw Cang and Jin standing a bit far away and looking at him as he went to them and folded his hand as he greeted them and they just smiled lightly as Jin said "You Boy are a true monster but its sad that we cannot bring you into our clan" and Lin just gave a simple smile at his word and Cang said "So, Lin what's your plan now" as Lin looked at Cang and said "Now, I am going to head to the West City".
Cang said "I see you want to enter Devil's lair huh" and Lin just nodded. After a While, Lin said Goodbyes and consoled Wu Xi for a while as she promised him that she would be stronger next time they meet each other and Lin also promised her the same thing as he took boat and leave the Underwater city as after 2 days a protective formation was formed covering the whole island city as it submerged into the water.
Underwater City is established in a island which submerged into the water 3 times a year and for 3 months as it only comes out 3 times each with a one month long period and the Wu Family was the one that established the formation and the city. The submerging of the island was found to be natural when investigated by Wu family as this island is just another magic of Mother Nature.