High in the sky, the rocket will encounter bitterly cold temperatures. If we're not careful, the fuel could freeze solid.
We must add coldness-resistant ingredients to the fuel.
The fierce blood in Muscular Bone-Eating Drakes can produce coldness-resistant ingredients. Why don't you run along and get me some?
If the engine of the rocket breaks down as it soars through the increasingly chilly atmosphere, our whole mission will be a loss. The coldness-resistant ingredients are critical.
It's easy to find Muscular Bone-Eating Drakes near the observation site. Bring me their blood.