Tyler leaned against a tree and looked up at the woman. His head cocked to the side. "I'm not sure if you know this, but you're not where you're from anymore." The woman wiped an arm over her face. "Really. I'm not sure what was my first clue; the little blue person with wings or the miniature mammoth with teeth." Tyler looked around. "You saw a tlarrison? When?" "Which one is that?" "The tiny meat eating mammoth." "About an hour ago." "Look, I don't want to frighten you, but I'm coming up your tree." Tyler took three running steps toward the tree and two more up the tree where he grabbed on to the lowest branch on the trunk. He hauled himself up and climbed the rest of the way so he was at the same level as the woman. She looked at him cautiously. "So if the mini mammoth is a tlarr... um, what was it again?" "A tlarrison." "Tlarrison. So what was the little blue person with wings?" "A Burrie." He smiled. "And you are?" "Tyler." "Tyler. That sounds normal enough." She took a deep breath. "I'm Heidi." It's been five years since his twin brother Trent was killed and Tyler has been on his own ever since. When he stumbles across Heidi, a human from the other world who's just crossed over, he vows to get her home against his better judgment. What he doesn't realize is that to keep his promise, he'll have to risk his life and the one thing he's managed to keep to himself since the war... his heart. Still, a promise is a promise and Tyler doesn't break his. After facing human rogues, packs of Majs, and Zerpanays, he'll have to decide... can he bear to let go of the one thing that's managed to bring him back to life?