This is Hera Jackson, Bella's little sister. Hera is a character that is the most mysterious, though she has no powers like the Seekers or her sister. She may have one of the most important roles in the Seeker Universe,

Bella
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Link
www.createspace.com/7722442

Summary
"Hera Jackson never expected Arcadia to go to
war. Much less a civil War! Arcadia was a land
of freedom and peace right?
As the war rises higher, Hera finds herself
thrown into it, she starts to realize Arcadia is
dying and she had been lied to. Arcadia will
crumble if nothing is done, so Hera decides to end
the war that is killing her people only to find
herself going against her own family."