It is in Nate's overstuffed school locker, second floor of the school. The combination is 9305 (entered vertically), which you learn from assembling the comic book pieces. The blueprint shows there is a secret room behind the Detention Room.
a school blueprint. get the combanation on the FINSHED comic.
On 24 Carrot Island, the vent diagram is in a window near the roof. On Big Nate Island, the school blueprint is in Nate's locker. The secret map to the Time Capsule is under a rock on Seal-Saw Island.
The entrance to the hidden room is in the second drawer of the filing cabinet. You need the blueprint from Nate's locker to access the room.
Among the tons of junk crammed into the locker is the blueprint to the school. It shows the secret room behind the filing cabinet in the detention room. (see related question)
You do not play as Big Nate. He accompanies you around most of the island, and races you on the jet skis.
You can't play "as" Nate, but everywhere you go on the island, he tags along.
There is no Duke among the characters of Big Nate island.
It is behind the filing cabinet. You must open Nate's locker on the second level. Pick up the blueprint from the pile in front of it. (see related question)
Big Nate Island was released in February, 2009, and followed by Astro Knights Island in June, 2009.The island after Big Nate island was Astro Knights island in June, 2009.
You have to put together the comic strip. There is a secret message across the middle (Nate wrote his locker combination on it). Once you have the comics, go to the locker and dial the combination. After the mess settles, click on the pile to retrieve the blueprint.
You can't access the Filing Cabinet unless you have the Blueprint showing where the secret room is. Use Nate's combination to open his locker, and get the blueprint from the pile of papers. Now you can access the room below the filing cabinet.
The "blueprint" in Big Nate's Locker (combination 9305 is on the comics) shows the location of the "secret room" in the school. It is in the Detention Room, behind the filing cabinet. To get there, you will need the gum and the stink bomb. Chew the gum, use the stink bomb, and go behind the filing cabinet. (see related question below)