You have to first find all the pieces of the Big Nate Comic.Then go to the jammed locker and put in the combination.On the ground is a pile of papers.Click it and you will find a blueprint of the school.Then chew the gum in your items (which will be given to you by the guy at the comic shop for completeing the comic) and get into detention.then let off the stink bomb,and after the teacher walks out,walk to the green cabinet and click it. (you make the stink bomb in the science lab by combining the blue and yellow liquid)
The entrance to the secret room under the detention room is in the filing cabinet.
in the detention room
In the file cabinet, in detention, in the school.
use a stink bomb to get the teacher out of detention.Then click on the second and the third drawer
In The Detention Room
Get into detention by chewing bubble gum then use the stink bomb to get the teacher out of the room and go down the file cabnet on the right
When You Go Into The Secret Detention Room And you jump down the Light switch is on the wall.
Big Nate IslandThe secret room is under the detention room, and can be reached through the filing cabinet.Astro Knights IslandMordred's secret lab is underground, with a locked entrance under the hay bales.(see related questions)
It is in the secret store room behind the filing cabinet in the detention room on Big Nate Island. You need the blue prints from Nate's locker in order to access the secret room.
when your in the detention room to get the teacher out.
Go into the school, by the detention room, then chew it! That's how you get into the detention room! Hope this helped!
get all the pages for the comic book open the locker get the gum and chew it right in front of the detention room