I want to share my opinion of the origin of Ceara’s malady. It is not my intention to address any theories relating to Elder Dragons in this post, however, not so much because said theories are implausible, more so because they are so popular that they are too commonplace for any productive discussion. Nonetheless, theories placing Ceara under the influence of an Elder Dragon are strong and should not be dismissed.
It is my opinion that Ceara is somehow being influenced by the Nightmare. There are a number of reasons why I entertain this idea. Firstly, the recent discovery of a thorn vine scaling the Pale Tree presents us with new information about the nature of the Nightmare. As the Pale Tree represents the Dream, the thorn vine represents the Nightmare. Exactly what the thorn vine really is – the tail of Mordremoth, an Elder Dragon champion or even just a dark entity – is hard to define at this time. However, it appears (for now at least) to be no more than a climbing plant. Granted, it is parasitic and seems to feed on “Dream magic” in like manner to Elder Dragons, who also feed on magic. However, there are a number of other creatures within Tyria right now, including the Pale Tree herself, who feed on magic and are not considered Elder Dragons as a result – the point being that this line of inquiry is easily exhausted at this tentative point and so should not be pursued much farther.
The reason the thorn vine is so important in Ceara’s case is that it is one of a number of prime candidates for the being to which the Pale Tree refers, which looked back at Ceara as she looked at it. Certainly, when Ceara looked at the Pale Tree the Pale Tree engaged her, indicating that the tree, clearly a powerful psychic, was aware of her presence. In other words, you could say that the tree looked back at Ceara – but it wasn’t the only sentient being doing so. The thorn vine also looked back. What if it tried to make contact with her?
Secondly, when she left her ecstatic state Ceara renamed herself “Scarlet Briar”, her demeanor changed from golden to crimson, she became stronger and also grew thorns, with which she quickly dispatched Omadd. This kind of outward change in demeanor is always exhibited by Nightmare Hounds. They become stronger and always grow thorns. Still, it doesn’t seem to be something that Nightmare sylvari do: When they turn to Nightmare, they do not consistently seem to grow thorns. This may be because Nightmare sylvari can control their ability to grow thorns in the same way that they can control their ability to grow clothes and other adornments. That is to say, although all sylvari can grow thorns (consider the female sylvari PC’s statement: “This rose has thorns, here they are”), Nightmare sylvari may have a particular inclination to do so literally – in the right situations of course. Nightmare Hounds on the other hand, who are not self-aware, may not be able to control their subconscious and so cannot conceal their thorns.
Thirdly, Ceara seems to take the place of Faolain in a number of ways. Certainly, Ceara doesn’t lead the Nightmare Court – indeed, she may not even lead the splinter group forming the Toxic Alliance. However, there are parallels between her and Faolain which should be considered. To begin, the pre-Twilight Assault release Twilight Arbor dungeon loading screen depicted a thorny Faolain reclining in a thorn vine flanked by two Nightmare Hounds. The picture conveys that idea that Faolain herself has sprouted thorns in like manner to Ceara. Sure, the in-game models of both characters do not depict this but my former point is that this may be because Nightmare sylvari can conceal/contract their thorns. Again, Ceara seems obsessed with Caithe – a quality formerly only exhibited by Faolain. Her familiarity with Caithe is not just the idol worship of youth – Ceara knows Caithe’s darkest secrets and the Pale Tree didn’t tell her. Furthermore, gaining these secrets is not something one does by viewing a “system” (that is to say that you don’t learn this from the Eternal Alchemy) but by conversing with those who know Caithe, like Faolain and the Nightmare. However, it is clear that Ceara did not consult Faolain because she knows things about Caithe that even Faolain doesn’t know. To continue, Ceara is raving mad, much in the same way as Faolain. In their own ways, the two sylvari differ in the way in which their madness is exhibited, but it is nonetheless evident that both have lost their minds – just consider how both laugh maniacally.