"Burn has promised us immunity from attack for the next hundred years if we help her win. If we don't — she'll destroy us. She is a powerful enemy, little SandWing. A lot more powerful than you, and she's an enemy I don't intend to make."
Moorhen is an adult female and the current MudWingqueen. By size and age, she is possibly the current oldest queen in Pyrrhia, and is described to be as large as Morrowseer. She has four siblings.
Queen Moorhen is huge, as big as Morrowseer and taller than her siblings. She has russet-brown scales and wears gemstones on her ankles and head.
Moorhen is the bigwings of her clutch and is very protective of her three brothers and sister. Her protective instincts extend to the rest of her tribe as well, as seen when she joined Burn's side of the war when Burn threatened to attack the MudWing tribe if Moorhen refused to fight with her. According to Sora, Moorhen is a good queen and is loved by her fellow MudWings. She is very wise and would do anything to protect her tribe from danger, even collaborating with Burn, and it is shown in her long reign over them.
She also knows about Queen Coral's scrolls. Moorhen refers to them in The Brightest Night as "The SeaWing queen's silly, romantic scrolls," implying that she does not think highly of them.
Queen Moorhen's army helps the SkyWings with the dragon flame cactus attack on the Summer Palace, carrying burning logs and dropping them into the palace. Her spy in the Talons of Peace, Crocodile, was the reason they were able to find the Summer Palace
When the dragonets of destiny and Webs are walking through the Rainforest Kingdom, Tsunami notices some MudWings headed their way but notes that they couldn't possibly see them in the fog, but Starflight suggests that they should hide because they were only a day's flight from Queen Moorhen's palace and that they wouldn't want to get caught and be imprisoned by her. Glory also sarcastically said that Moorhen probably would not give them tea and send them on their way if they met her.
In the prologue of The Dark Secret, Pheasant asked why she and her siblings have to fight in the War of SandWing Succession, and Reed replied that Queen Moorhen must have a good reason to ally with Burn and the SkyWings.
Moorhen gathered her army to prepare for an invasion of the Ice Kingdom along with her SkyWing allies, in which they planned to wipe out the whole of the IceWing forces. Sunny visited Moorhen during one of her nightmares using a dreamvisitor to warn her about the battle. Sunny managed to convince her not to go through with the invasion because it would kill too many dragons on both sides, and arrive at Burn's stronghold a few days later for the peace summit. Although Moorhen did agree to try, she was still unsure it would solve anything but was still present at the stronghold at the end of the book for the crowning of Thorn. Also, while this was unbeknownst to all but the IceWings, the Great Ice Cliff would have slaughtered the entirety of Burn's attack.
Umber mentions to the rest of his Winglet in Moon Rising that his siblings Reed and Pheasant are working for Moorhen in her palace. Later, Anemone mentions she hasn't eaten ever since she left Queen Moorhen's palace.
At the beginning of the book, Scarlet arrives at Jade Mountain to throw the decapitated head of Queen Glory at Queen Ruby, her SkyWing guards, and the dragonets of destiny before fleeing. With the help of Turtle, the group discovers that the head is actually a MudWing head enchanted to look like Glory, and Ruby decides to contact Queen Moorhen and let her know that Scarlet has killed one of her subjects and therefore must be around her swamps to get to a MudWing.
In Darkness of Dragons, Queen Thorn mentions Moorhen, saying that she should send a dragon with an earring enchanted to protect her from Darkstalker. However, the book misspells her name, spelling Mudhen instead of Moorhen. In the epilogue, Coral mentions in her letter to Turtle that she is rebuilding the Summer Palace and hopes it will be a center of trade and diplomacy, especially with Queen Moorhen and Queen Glory.
While never appearing, one of her generals, Swamp, and at least two of her guards met with Tempest, Blister, and the SeaWings at the time of Tempest's murder. One of the guards (likely General Swamp) reported the news of what happened and subsequently, she broke off her alliance with Blister. Due to these events, Burn was able to threaten her into allying with her.
"But then the war will be over, and perhaps that'll be worth it. Burn has promised us immunity from attack for the next hundred years if we help her win. If we don't-- she'll destroy us. She is a powerful enemy, little SandWing. A lot more powerful than you, and she's an enemy I don't intend to make."
Moorhen and Coral are the only two queens to be part of the original leadership at the time of The Dragonet Prophecy and still lead in Darkness of Dragons.
She has been described as an older queen. This is probably due to the fact that a MudWing's siblings would never betray each other, as they have a very close bond instinctively.
Moorhen is most likely not descended from the original line of MudWing queens, as Chameleon has mentioned that there was a time the MudWings were left with no heirs, which ended in chaos.
In Darkness of Dragons, Queen Thorn accidentally refers to her as Mudhen. This was corrected in the E-book and later printings.
She has the most book mentions and least appearances of any queen that actually appears, having appeared in only The Brightest Night and mentioned in all other first and second arc books as well as Assassin.