lartaker1975

Question: Tom Riddle tells Harry that Ginny wrote the messages on the wall. But how did she write them? They appear to be up way too high for her to reach.

Answer: She got some stairs. The corridors are empty for long times, she had plenty of time to write it. Either that or levitation.

lionhead

Why did Tom Riddle tell Ginny to write the messages on the wall?

Because it was obvious that neither he or the snake could write the message themselves. He's creating fear at Hogwarts.

lartaker1975