Pilgrims - The Blue Planets World Series, #3

Ages 8-14In a break-neck race across the galaxy to the other blue planet, Jake Rose, a half-human and half-alien teen, arrives on the doomed planet Rison in search of a cure for a deadly alien illness. The stakes are higher than every because his girlfriend, Em, is dying. Unless they find a cure, the entire Phoke race may die. Jake finds his foster father just as aloof as ever and unwilling to help.
This dangerous whirlwind journey to Rison, the doomed volcanic planet, is a story of survival, power and epic sacrifices. As earthquakes rumble and the planet's core starts to collapse, Jake must find an elusive starfish. Or all is lost. He'll never back down, even if it costs him everything. Come join his quest