I'm working on a character concept that I need a bit of help with working out mechanically. Basically the character writes books about his glorious endeavors and feats. About how he single handedly saves entire villages, defeats menacing horrors, prevents catastrophes from befalling nations. Of course, he doesn't actually do these things by himself, the party he travels with does them, but he wants the world to believe otherwise through his books.
So this is where I need help, altering the minds of the other player's chararters to believe differently what happened on the last few minutes of key events. I've found a few spells that work somewhat like what I'm looking for, such as Memory Lapse and Modify Memory. The only problem with these is that they affect a single target, so it will be difficult to get the entire party believing that I stepped in when they were in grave peril and rescued them, and the townsfolk, from the lich lord just in time to save their souls from eternal damnation and servitude to the undead.
Are there other spells/abilities I have missed that could affect multiple targets? Or are there ways to increase these spells to affect more than a single target? Or perhaps some way to you guys can think of to get this to work, to change the memories of the whole party?
Thanks in advance.