Trixie Hale

""You have a sister?!" I exclaimed. "Why are you so surprised?" Erica asked. "Lots of people have sisters." "Yes, and they generally tell their friends that they exist." "I'm telling you now.""

- Erica Hale telling Ben Ripley about Trixie in Spy School Revolution

Trixie Hale is Erica Hale's sister. She is a normal civilian who is not aware of her family's business in the history of USA spying (it might have been revealed at the end of Spy School Revolution, though).

Cyrus, her grandfather, decided to keep Trixie in the dark about the family business, because “At age three she could not throw a knife or defuse a bomb." Ben points out that most three-year-olds can't do that. But for the Hale family, this is normal. However, she is close to finding out the truth about her family and is good at covert eavesdropping, as seen at the end of Spy School Revolution.

She goes to a normal boarding school in Connecticut, believing Cyrus to be a retired sporting goods salesman, Alexander to be a diplomat, Catherine to be a museum curator, and Erica to be studying to be a biochemist. Since she is not a spy, the Hale family had to keep her safe.

Appearance & Personality
Trixie has raven black hair and likely has ice blue eyes, like the rest of her family. She is almost the polar opposite of Erica in all ways except looks. She carries herself with a friendly attitude, and wears scrunchies. Erica commented that Trixie is "ridiculously pretty." Instead of being cold and distant like her sister, she carries herself as being relatively friendly. Ben described Trixie's personality as the anti-Erica.

Benjamin Ripley
At the end of Spy School Revolution, Trixie meets Ben Ripley in the hospital room that he was staying in. They talk for a little bit, and in that short time, she reveals that Erica has talked about Ben as well as Joshua. At the end of their first interaction, Trixie winks at Ben and says she hopes they meet again, although the reason why is unspecified.

She even says that Erica only talked about Joshua Hallal twice, while she mentioned Ben three or four times. At this point, Mike walks in, and in true fashion, instantly attracts Trixie and himself. Trixie pretends to leave but actually listens and eavesdrops on Ben and Mike's conversation about the events and results of their espionage, revealing to Trixie that something is amiss with her family. In the middle of the conversation, Trixie barges in and demands that Mike and Ben tell her what is really going on in her family.

Trivia

 * She makes good cookies.