Number One

Number One, a 14-year-old girl, was killed in Malaysia; she died when Number Four was at the age of Nine.

One was discovered by the Mogadorians as her picture was taken by the police, as well as her ankle mark, after she attempted shoplifting to impress a guy. She was known to be rebellious as said by Hilde. She was followed by the Mogs to Malaysia, where she met her end. She developed her first legacy, but it was too late as her telekinesis was off and earthquake powers did not last long, because she often skipped training lessons to spend time with Wade, a boy she liked. She was killed when a Mog came up from behind and stabbed her with a sword.

Her deceased body was taken by the Mogs to infiltrate her memories to find any information on the other Garde members. Adamus, the son of a Mogadorian General was selected for the infiltration due to his similar age with One. During Adamus's infiltration, One appears as a ghost and controls what memories Adamus sees. After Adamus' Three-year coma, One still appears as a ghost in Adamus' mind. She convinces Adamus to switch sides and try to help Number Two and Number Three although both Adamus's attempts fail. She continues to appear to Adamus, who survived the events of "The Fallen Legacies", in the "Lost Files: The Search for Sam" but her ghostly image is slowly fading away. She tries to convince Adam to find the Garde but fails to convince him. When her condition worsens Adam attempts to save her by returning to his kind in Ashwood. After a failed attempt to be infiltrated into One's memories, Adam finally succeeds after One convinced him to "go out swinging". One reveals that there was no way to save her and that she needed him to see the real side of his family so that he can go join the Garde. She also gives Adamus her legacy and shares a kiss with him after he professed his love for her, strongly hinting that she has feelings for him also, and fades away forever.

In The Forgotten Ones, her memory lives on through Adamus, who misses her and acknowledges that while she maybe gone, he will fight on for her. She was known to have tan skin and long blond hair, which Adamus notices as he "checks her out". Her Legacies include:

Earthquakes - In the Fallen Legacies, she created seismic quakes while battling the Mogadorians.

Telekinesis - Like all Garde, One can move objects with her mind.

Enhancement - All Garde possess enhanced physical strength, speed, reflexes, endurance and durability.