"Throw in the thunderclouds and you're good to go."

It's that simple? When Xiao Yan heard this, he was about to take out the Tribulation Pill.

"Wait, wait, wait, let's see how high the thunder can go this day." Zhan Lao looked at the still growing thunderclouds in the sky and called Xiao Yan.

Xiao Yan was already ready to use the Dan, but was called down by Zhan Lao. Xiao Yan had no choice but to stop and follow Zhan Lao's eyes to look at the thunderclouds in the Xiangshang sky. Isn't it more dangerous that the larger the thundercloud and the stronger the energy?

"Elder Zhan, isn't it a little bad to continue to let it go up?" Xiao Yan frowned slightly, looking at the violent energy constantly filled in the thunderclouds, Xiao Yan was a little worried, when he was absorbing the demonic blood qi before, Xiao Yan had already sensed Long Yi's danger, and now his life and death are unknown, he really can't afford to consume time, Xiao Yan was a little anxious, and reached out again to take out the Pill, suddenly Zhan Lao flashed, and his figure went directly to Xiao Yan's side, stopping Xiao Yan.

"Don't worry, I know you're worried about Long Yi, but the Heavenly Thunder of the First Emperor Tribulation can indicate your potential in the future, take a closer look!" Zhan Lao said with a serious expression. This is a good opportunity to predict Xiao Yan's qualifications, and Zhan Lao really wants to see what kind of demon the heir chosen by his master is.

When Xiao Yan heard that this heavenly thunder could predict his potential, his eyes suddenly lit up, and his curiosity suddenly rose, so he didn't say more, and stared at the ever-growing thunderclouds without blinking.

Thunderclouds continue to grow in size over time.

At this moment, thunderclouds occupied almost the entire space above it, shaking and rolling in circles. Zhan Lao looked at such a huge thundercloud, and it was still growing, and he also smiled with satisfaction on his face.

"Boom—"

With a muffled sound, a thunderbolt exploded in the air in the clouds, like a spider's web, and the muffled thunder echoed in this space for a long time. Xiao Yan couldn't help but swallow his saliva, if this heavenly thunder suddenly fell, he would definitely not be able to dodge, how powerful should the heavenly thunder produced by such a huge thundercloud be?

"Alright, let's use Dan! Otherwise, I'm afraid you'll suddenly disappear after a while, hehe. ”

Xiao Yan glanced at Zhan Lao, he could feel that there was an incomparably powerful energy gathering in the sky, and it would be released at any time. From Zhan Lao's attitude, Xiao Yan also knew very well that this thunderous liliang was not simple, it must be very huge, and it was definitely not something that he could resist.