Flying Jade Dragon 3,000,000

Lin Xuan transmigrated into a world where demon beasts rampaged. He became one of the lowest ranking wasteland reclaimers in the Germinal Organization to explore the mystic realms.
The Zero Realm mystic realm was the Giant Rock Cave. The First Realm mystic realm was the Demon Ant Nest. The Second Realm mystic realm was the Tree King Sea.
[Congratulations on seizing a Gold Swallowing Lizard as one of your avatars for gaining more experience. Do you want it to begin its training?]
[Your current location is first floor of the Giant Rock Cave. (1 coin per minute. 5 exp points per minute)]
[Gold Swallowing Lizard has been training for 4 hours. Do you wish to collect its experience?]
Lin Xuan’s eyes were wide open. He was well-versed in how this worked. This was similar to the AFK games that he played in his previous world. 
As such, he began his comfortable journey of becoming the strongest. 
Up until one point, the Germinal Organization discovered that he was abnormal and decided to deal with him. It only then did Lin Xuan realize that even Seventh Realm fighters and the managers of the organization were inferior to him.     

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I Have 10 Training Avatars

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Soon, everyone arrived at the top of the mountain.

This place was extremely high and it made the rest of the mountains seem small. As far as the eye could see, it was as if the entire Falling Thunder Mountain was covered in hundreds of hills.

Dark clouds stacked in the sky, and light spots constantly appeared. Then, lightning as thick as a bucket struck the ground.

However, the group was only able to find an empty huge nest at the top of the mountain.

A large number of smelly corpses and remains were scattered around the huge nest. Clearly, they were the food scraps of the Thunder Eagle.

There were also many scattered feathers in the huge nest, and many of them could be taken back as specimens.

However, the heavily injured Thunder Eagle was nowhere to be found!

Where could it possibly run to after being severely injured?

Killing the Thunder Eagle, A Ground of Gold!