There was no other choice. Lu Yin took care of the two people who had been willing to hunt down the ancient bloodlines for the Aeternals, as he had verified that the two were genuinely willing to cooperate with the Aeternals. He had no qualms about killing such people.

After that, he went to see Ku Lei and Lulu.

"What’s this?" Lulu exclaimed as she stared at Zenith Mountain. At the moment, it was only half a meter tall and it looked like a model of an actual mountain.

"There’s no other choice. If you don’t enter the mountain, you won’t be able to go back.” Lu Yin shrugged and then smiled at the two. "But the good news is that you don't have to be poisoned now."

Ku Lei arched a brow. "Why didn't you bring this up to begin with?"

Lulu also turned to look at Lu Yin. "Yeah! Couldn’t we have gone back by using this from the beginning?"

Lu Yin coughed. "Don't worry about the details. All you need to know is that you two can get back safely by using this. But!”

He eyed them both in a very serious manner. “It costs a great deal of resources to activate this Zenith Mountain. Do you understand?"

Ku Lei was completely lost.

Lulu just snorted contemptuously. "How much?"

Lu Yin looked at her with shining eyes. "A lot."

"How much is ‘a lot?’"

"How much do you have?"

Lulu instantly grew wary. "What are...