Olive Dragons are a small, forest-dwelling breed, rarely growing much larger than the average sheep. When alarmed, they can erect a long row of venomous spines on their back, serving to warn any potential predators that Olives are not a good choice for a meal. While not strong enough to kill anything larger than a small deer, their venom causes an extremely painful reaction and necrosis at the bite site, sometimes causing the flesh to rot and limbs to fall off.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Timid, shy, nervous; all of these words describe Oliver. He hides in the dense forest outside the cave, where he knows he can stay well hidden in peaceful solitude. His olive colored scales blend in with the dense undergrowth and any dragon that disturbs him can easily get a faceful of spikes. It's often his first reaction to anything or anyone that surprises him. When he does show up to the cave, he slinks away from the other dragons and jumps at every single sound. Dino wonders what sort of past he had to make him so suspicious of everyone, especially after being in the cave for so many months.