He-Man and the Masters of the Universe: I, Skeletor (Tales of Eternia Book 2‪)‬

The fan-favorite villain tells his side of the story in I, Skeletor, the second original Tales of Eternia middle-grade adventure from New York Times bestselling author Gregory Mone, based on Mattel’s He-Man and the Masters of the Universe and the hit Netflix show!
 
Long before he starts haunting He-Man’s nightmares, Skeletor is just an impossibly handsome, brilliant, scheming prince. But when a mysterious new tutor arrives in the palace, he shows the young prince a new path to power—and the throne that should belong to him alone.
 
Jumping between his royal youth and his adventures as the chief menace to the Masters of the Universe, I, Skeletor is a tell-all autobiography from the Dark Master of Havoc. Recounting the untold story of his clash with a terrifying foe, unveiling the source of his rivalry with the Sorceress of Grayskull, and revealing what really happened during the search for the legendary Sigil of Hssss, Skeletor finally explains how he manages to beat He-Man every single time.