Heydrich Oxen Pria L. Ehrenberg o kilala bilang Hope ay na-diagnosed ng brain cancer kaya kinailangan nyang manatili sa ospital upang mas maalagaan at mabantayan ang kanyang lagay. Lalo pa't tinaningan na ng doctor ang buhay nya. Doon, nakilala nya ang magkapatid na Gray at Gracie na may malala ding karamdaman. Naging kaibigan nya ito at ang dalawang ito ang naging isa sa dahilan kung bakit pinili nyang labanan ang kanyang sakit. And luckily, she still alive after 3 years and getting better but her two best friends didn't make it so she makes a promise to them. Pero ang hindi nya alam, ang pangakong ito ang maglalapit sa kanya sa tunay nyang pagkatao maging sa nag-iisang paraan upang tuluyan syang gumaling sa sakit. Will she be able to accept her true identity and embrace it or will she abandon her promise and just let herself die because even if her name is Hope, it is clear to everyone that she doesn't even have one for her life. Half-Blood Trilogy Book 1: The Half-Blood Vampire Book 2: Awakening of the Half-Blood Book 3: The Half-Blood's Last Battle