Before Xiao Ke could finish his greeting, Wan Haoran arrived with the disciples of the Sage King Palace.
"Haha, looks like we have the same idea."
Shi Le said with a laugh.
Wan Haoran glanced at them and handed a bag full of Spiritual Stones to Xu Tianyu.
Xu Tianyu didn't count them and threw them into his storage ring.
Xiao Ke and Shi Le took out the Spiritual Stones and waited for Xu Tianyu's news.
"Everyone knows that there is another race in the Glory Battlefield besides us humans."
"The Sea Demon Clan?" Shi Le was the first to answer.
"That's right, it's the Siren Clan. This time, we humans have lost a lot in the event. The other party is a little restless. I received news that the Siren Clan will launch an all-out attack on us when the Sky River is completely unsealed."
Hearing Xu Tianyu's words, Xiao Ke and the others were stunned.
"Are you sure?"
Wan Haoran asked in a deep voice.
Xiao Ke and Shi Le looked at Xu Tianyu seriously. This was not a joke.
They had experienced so many Glory Battlefields and knew how terrifying the Sea Demons were.
In the past, the Sea Demons only came out at the end of the Glory Battlefield. They didn't expect that the Sea Demon Clan would become restless because of a Mid-Autumn Festival event.
"There is a 90% chance. You should go back and prepare."
Xu Tianyu tried to persuade them again. After all, Maple City alone couldn't resist the Sea Demons' attack.
Therefore, it was necessary for the Pluto Pavilion, Southern Ice Castle, and Sage King Palace to build castles. At least, they had to help Maple City with the Sea Demons.
"Yes, we understand. Thank you for your reminder."
The three of them thanked Xu Tianyu and left.
Now, there was nothing for them to hang around.
They hadn't built their castles yet. If they encountered the Sea Demons now, it would be a fatal threat.
After getting the Spiritual Stones he wanted, Xu Tianyu didn't stay and immediately returned to Maple City.
"Young Master, you are back. There is a letter for you. It flew over from the other side of the river."
"Oh." Xu Tianyu took the letter in surprise and then went up the city gate tower.
Sure enough, there were already two castles on the other side of the Sky River. They were about the same size as Maple City.
"It seems that the other side has also discovered the situation."
Xu Tianyu finished reading the letter in his hand. There was no change in his expression. He waved his hand and called Lunar Scar over.
"Yuehen, pass this letter to the Lord of Pluto Pavilion, South Ice Castle and King Sage Hall."
"Yes, young master."
In the letter, other than compliments, there was only one other meaning, and that was to form an alliance.
"Across the river, this alliance won't be easy to form."
Xu Tianyu sighed and took out a sound transmission stone.
A few Lightning Bugs flew over and took the sound transmission stone to the other side of the river.
Although the Sky River had been unsealed, there were still many Fossilized Worms on the river. If they went there recklessly, they would be in danger of killing them.
However, the Lightning Bugs were the evolved form of the Fossilized Worms. There was no such danger at all.
Therefore, Xu Tianyu didn't need to send someone to take the risk to deliver the letter. However, there was only one person who could accept Xu Tianyu's sound transmission stone. It was the little girl from Silver Moon Castle.
Xu Tianyu looked at the Octopus King and the Catfish Monster who were still working hard behind him. He wasn't too happy about it.
"I hope I can make it in time."
If the Sea Demons took action in advance, the humans would be wiped out by the Sea Demons. Other than the Battlefield of Glory, they would be the laughing stock of the entire human race.