Trapped

Harry and Ron were not able to make it into The Chambers of Secret to rescue Ginny, but she was able to fight Tom's control once again. What would happen to her with no way out of The Chambers, and what would happened to the world above ground? AU starting in the end of CoS. HP/GW, HG/RW, LL/NL, RL/NT. Smart, eventually OP Ginny. Eventually MOD Harry.