Yeah I know what you are talking about.
One that large scroll, when you open it up, all the letters make up the shape of a key. Whenever a seal jutsu or summoning jutsu takes place, it usually has lettering that spreads out... or condenses. Think of Itachi helping Sasuke with the curse seal. Or Tenten's weapon scrolls...
The key according to Jiraiya and the Frog is to either open or close the seal on Naruto. The seal naturally opens slowly overtime and the more he uses the 9-Tails. Jiraiya was holding onto the key because it Naruto is in possession of it, and is unable to control the 9-Tails... noone will be able to turn the key and "re-lock" it. Jiraiya was warned about giving the key directly to Naruto, upon his death, for this reason... In fact, the huge scar on Jiraiya's chest was from him experimenting with opening the seal "just a crack"
Hope that helps... I do know that Naruto is supposed to have inherited the key. But he hasn't gotten it yet.
Damn, you're a faster typer! hahaha. You're ideas are alittle far-fetched compared to mind though... I'd re-think everything if I were you! haha
Originally Posted by Zurita210