Harry works on solving the secret of the egg in the Prefects’ bathroom, is helped by Moaning Myrtle, sees Crouch on the Marauder’s Map, gets stuck in the stairs, barely escapes being caught by Snape, and the fake Moody borrows Harry’s map.
Calendar and Dates
The action of this chapter takes place on the Thursday after the Hogsmeade visit of the previous chapter.
Interesting facts and notes
"The Egg" refers to the golden egg, while "The Eye" refers to the fake Moody's magical eye.
The entire phrase is reminiscent of the title of the book The Egg and I, although far from lacking running water and other amenities as that story did, the setting of most of this chapter is the opulent Prefects' bathroom.
he decided to do it at night
But not on the night of the same day as the events of the previous chapter, which was a Saturday.
Harry planned his excursion carefully,
He actually took several days to do so, from Saturday afternoon until Thursday night.
because he had been caught out of bed and out of bounds by Filch the caretaker in the middle of the night once before
That was the night that Harry and Hermione smuggled Norbert up to the top of the Astronomy Tower during their first year (PS14).
Harry had the heavy egg under one arm
The details of the egg's awkward size and weight were glossed over in the film, in which it was easily picked up in one hand.
On Thursday night
The rest of the action of this chapter takes place upon this particular Thursday night (see Timeline).
Exceptional character moments
Myrtle's apparent resentment of the flirtatious mermaid painting, although she herself admits to sometimes spying on Prefects as they bathe.
Myrtle's enjoyment at bossing Harry around a bit.