Ginny took herself into the Chamber of Secrets, as instructed by Lord Voldemort who was possessing her at the time.
When Ginny Weasley is taken into the Chamber of Secrets.
Ginny Weasley.
Ginny Weasley, Ron's sister.
Ginny Weasley was forced to enter the Chamber where she would have died had Harry not saved her.
Ginny Weasley, who was being possessed by a horcrux of Lord Voldemort.
Ginny Weasley.
To rescue Ginny Weasley.
yes,
To save Ginny Weasley.
No. She can't speak Parseltongue, the snake language needed to open the chamber. Ginny Weasley opened it. Ginny could speak Parseltongue because Voldemort was possessing her through the Diary and speaking Parseltongue in her mind.
In Chamber of Secrets, Tom Riddle's diary possessed her and forced her to open the Chamber of Secrets.
Ginny Weasley.