We're well acquainted with most of the winged stars of House of the Dragon, past and present: the colossal Vhagar, the fierce Caraxes, the mighty Vermithor, the misunderstood Sheepstealer. But there's one dragon in Season 3 who keeps showing up and is yet to receive a full introduction.In the military ranks of Lord Ormund Hightower (James Norton), there's a smaller blue dragon who appears constantly grounded. Who is she, and will we get to see more of this little cobalt gem?Meet Tessarion, known as the Blue Queen, a dragon ridden by Prince Daeron Targaryen (Benjamin Evan Ainsworth), Ormund's ward and the youngest son of Queen Alicent Hightower (Olivia Cooke) and King Viserys (Paddy Considine) — meaning he's a direct threat to Rhaenyra Targaryen's (Emma D'Arcy) throne.

We first spy Tessarion in Season 3, episode 1, when we're introduced to Ormund at his army camp. Tessarion's not fully grown, standing only two humans high and wearing a small saddle. And she's so cute. But she's fenced in with spears, in a move that likely keeps the troops calm and horses uneaten more than anything (and keeps out thieves). At this point, we don't know House of the Dragon is hiding Daeron in plain sight, ready for the Hightower lord to pull the switcheroo in episode 3.