Beyond the Cosmos: United We Shall Stand

Leah is 12 years old now. She recalls what happened in the past- 4 years ago, to be precise. When PVN's spirit faded away into heaven, Leah was devastated. And all she had left was the four powers PVN gave her. Cosmic was what Leah kept. The other three powers, she gave to her three dogs. Jett with super speed, Maverick with healing, and Winnie with indestructibility. And just a month ago, Leah became half melanistic serval.
But Leah has a huge task to fulfill: defeating the tyrant Scourge... and his minions. He created a portal which is wiping out the universe at a fast rate. While Leah may be a chosen hero, she needs to find a secret stone to become a sage... plus reinforcements. Three years ago, Leah met a group of giant robots called Autobots and giant mammals called Hybrids.
But apparently, she was ambushed by Starscream, and the last thing she remembers is losing a fight to Megatron when Unicron was finally destroyed. Megatron took the Autobot leader, Optimus. Leah doesn't know if the Autobots and Hybrids have gotten their leader back.
What she does know is that she has to find that secret stone, get reinforcements, and travel far and wide to find Scourge to defeat him once and for all.
Will Leah find her friends? If she does, will she travel beyond the cosmos to stand united with her reinforcements? Because there may be more to this battle than meets the eye.