Jackson Core

Jackson Core is one of the main characters of series Ventures of Gem Land. He is the son of Liv and Hudson Hunter, the former King and Queen of the Southern part of Gem Land. His parents died when he was six years old and his memory was wiped and he was sent away to earth to live with his mother's friends. He is the brother of Lucinda Core, another main character in the book series.

His real name was Christoff and his surname is Core since he too like his sister bears the power of Core, the source of energy for all Night as well as Light Kingdoms. When he was twelve, the Queen of Gem Land pays him and his sister a visit, revealing that they both are connected by blood which comes as a surprise to both of them. He, along with his sister is then taken to Gem Land for fourteen days to learn about basic magic so that he could protect herself when necessary. While reaching upon Gem Land, he finds so many friends of him who were related to magic. He meets Jessica Dennard, Lucinda's best friend and Devin Walker, who he too like his sister develops a strong dislike for him. Even after several warnings from his sister, he hangs out with Layla, Devin Walker's sister and he feels the urge to defend her against his sister who hated her. During his stay in Gem Land he develops a sort of rivalry with Jessica who he mocked at several occasions.

When he returns back to earth, everything goes back to normal. Until he finds out about a secret kept by his sister and then joins her sister in fending off Black Time along with his other few friends.

He obtains the power of Turquoise stone which bore the power of Time and teleportation.