I was watching 'Harry Potter and the Chamber of Secrets' and found myself with intriguing doubts.
Moaning Myrtle houses herself in the unused girl's bathroom in Hogwarts. She would be able to interact with anybody that comes in the bathroom. Having said this,
How did Myrtle not see Ginny Weasley being taken to the Chamber of Secrets in her trance state?
Any activity in this particular bathroom will not take place without the knowledge of this ghastly girl. So how did she not know anything about Ginny's trance state and how she ended up in the Chamber? There is a scene when Myrtle weeps about someone throwing a book at her, but how come she didn't chase the person who threw the book at her? Come on, she's a ghost, and is fully capable of waltzing through the walls and following the person who threw it.
The second question is:
If Nearly-headless Nick was petrified by the Basilisk glance, why wasn't Myrtle's ghost ever petrified?
There is a scene in which Justin Finch-Fletchley was found petrified, but did not die as he saw the snake through Nick. Now Nick hangs petrified, mid-air, even though he is already dead. How come Myrtle, who could've seen the Basilisk, more often than anybody, not be known to be petrified?
My knowledge on the series is highly limited, so please excuse any mistakes I may have made.