The plot is simple: Hermione started a little project in year three when she had the time turner. An independent project because she was a bit crazed after time looping so much and it seems like the perfect idea when you're exhausted, a genius and time travelling. The project was simple: Create a computer simulation of Hogwarts using magic.
Essentially getting a time turner required a temporary Spell Research license with the Ministry, which exempts the bearer from the penalties associated with, say, merging Muggle technology and magic because of the nature of time turner use (I imagine it's mostly utilized to maximize research time so it doesn't seem like a huge leap). In any event, Hermione made this simulation. She entered in basic data on her classmates, friends and teachers as well as other items, basically recreating the Hogwarts area (and Hogsmeade) in digital form. The Marauder's Map helped her finish some additional data input at the end of the year to make it more realistic. In a way, it kept her sane as she time traveled to tinker and manipulate a little game of her school and the wizarding world.
However... Due to the exhaustion she suffered at the end of the year due to the Time Turner and assorted junk, she left the project at Hogwarts and... Forgot about it. Two years later, during Year Five, she realizes the Room of Requirement could be used to find her missing project so she decides to find out what happened to it.
And it turns out... Quite a lot has happened, actually. As the programs of her friends, classmates, teachers and enemies are now aware of their nature. And the consequences of this are... Well... Staggering.
Essentially getting a time turner required a temporary Spell Research license with the Ministry, which exempts the bearer from the penalties associated with, say, merging Muggle technology and magic because of the nature of time turner use (I imagine it's mostly utilized to maximize research time so it doesn't seem like a huge leap). In any event, Hermione made this simulation. She entered in basic data on her classmates, friends and teachers as well as other items, basically recreating the Hogwarts area (and Hogsmeade) in digital form. The Marauder's Map helped her finish some additional data input at the end of the year to make it more realistic. In a way, it kept her sane as she time traveled to tinker and manipulate a little game of her school and the wizarding world.
However... Due to the exhaustion she suffered at the end of the year due to the Time Turner and assorted junk, she left the project at Hogwarts and... Forgot about it. Two years later, during Year Five, she realizes the Room of Requirement could be used to find her missing project so she decides to find out what happened to it.
And it turns out... Quite a lot has happened, actually. As the programs of her friends, classmates, teachers and enemies are now aware of their nature. And the consequences of this are... Well... Staggering.