The Mystery of SlenderMane

After the Mane Six Defeat Slendermane, A gravestone rises from the ground,with a crossed circle in the middle. 10 years later, Lillyheart, an Alicorn that has never been outside the forest, visits the gravestone, not knowing what's in store for her. Although she lived in the forest, she didn't know who this pony was, and when she goes to fix the bow tie sitting next to the grave, something strange happens...
Carmelita and her partner Iris Shade are assigned to the missing pony reports in the forest, while investigating, Carmelita runs into an old friend...
I am not the only author of this book. This book was also written by my great friend Lotus. And additional help from Chip Circuit. Thank you!