Claudia

Claudia is a Roman Legacy, a descendant of Mercury. Her notes on her first few days at Camp Jupiter helped create Camp Jupiter Classified: A Probatio’s Journal.

History
On her twelfth birthday, her father revealed that they are descendants of the Roman god Mercury, with him being the messenger god’s grandson and her being his great-granddaughter. Soon wolves came for her and brought her to the Wolf House. Their she survived Lupa’s training by building traps and evading the wolves as much as possible.

Camp Jupiter Classified: A Probatio’s Journal
During her first few days at Camp Jupiter she was placed in the Fourth Cohort with little trouble, she later learned it was due to a need to refill their numbers after the Second Demigod Civil War.

The following day she finds a letter she thinks is from Mercury and takes it, does poorly during weapons training, and bumps into Frank Zhang leaving his father’s temple and laughing at the son of Mars.

Trivia

 * Claudia is the second legacy to have a point of view in any of Rick Riordan’s books. The first being Frank Zhang.
 * However Frank is also a demigod, a son of Mars, in addition to being a legacy of Poseidon. If Claudia is only a legacy of Mercury, then she is the first point of view character to be just a legacy.