The queen of the fireworms (the Fireworm Queen, also called Fireworm Princess in Dragons: Rise of Berk) looks quite similar to your average fireworm, but she has some differences that make her outstand from the rest. For instance, while the common fireworm can fit in the palm of a hand, the queen is many times bigger, her size is comparable to that of a Monstrous Nightmare. She also possesses several protuberances in the back and front of her head that resemble a crown. The Queen was seen only at Fireworm Island so her original colour (the color when not heated up) is unknown. It is unknown if the Queen even has an original color. Fireworm Queens are, like the name suggests, always female and if another female fireworm were to be born in a nest which already has a queen, the newly born fireworm would fly off to start a nest of her own. Fireworm Queens would appear to be the only female in the species.