“Evil threatens Tyria, but our Dream will lead us through darkness... to dawn.
— Caithe, The Races of Tyria
She is unusual in that while most sylvari are creatures of light, she has never feared "gazing into the darkness" to seek "truths that others fear."
She was the lover of Faolain. Caithe refused to embrace the Nightmare as Faolain did, and although they have parted ways, Faolain has vowed that Caithe will return to her in time. Caithe continues to work toward the defeat of the Elder Dragons and the reconciliation of Destiny's Edge.
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When Caithe senses a shadow descend upon the Dream, she enters it through unknown means, guiding Sylvari who are soon to awaken to the source of the Shadow to destroy it.
Later, when the Orders of Tyria (The Vigil, the Durmand Priory, and the Order of Whispers) bring news of a imminent attack upon a Lionguard outpost in Kessex Hills by the Risen, she is present along with one of the newly awakened Sylvari at a meeting convened by the Pale Tree to discuss what to do about the situation. Her young friend is tasked as the Pale Tree's Herald to choose which course of action to take. When the Herald returns, and it is revealed that the one leading the attack was Mazdak the Accursed, the Pale Tree has the Herald pursue a course to retrieve the sword Caladbolg that Riannoc wielded against the Lich; once they have done so, Caithe joins them in a mission to stop Mazdak.
Once the Lich is dead, Caithe reflects upon healing the wounds of the past, and sends words to her friends from Destiny's Edge, asking them to meet her in Lion's Arch, in an attempt to reform the guild and join the Orders in defeating the Elder Dragons. However, the meeting ends with the group all going their separate ways, Eir stopping only to promise Caithe that she will try to mend the rift between Logan and Rytlock. Her words do little to inspire Caithe, but the Herald offers encouragement, leading Caithe to promise that they will meet again someday.
- Her voice actress, Kari Wahlgren, has stated that, "She's very mysterious... we're not quite sure whether she's good, or whether she's evil, but she seems to pop up throughout the game with information and no one's quite sure how she got it."