What is in this image? Describe it as if you were explaining it to someone from the 15th century.

The image depicts a fantastical creature, akin to a small dragon, emerging from what appears to be an egg. This creature has large, kind eyes and a playful demeanor. It bears a single horn atop its head, with a series of smaller spikes or horns trailing back from the head down the neck. Its wings, though still apparently small and delicate, resemble those of a bat. The shell of the egg from which it is emerging is cracked in various places, suggesting the creature has just broken through. This scene could be likened to tales of mythical beasts hatching from eggs, a concept that might stir wonder and intrigue in your era.