I have yet to run my first mission with my 4-mouse group (it’s coming up in a couple of weeks - Mail Run). But I had one of those ‘moments’ when an idea came to me that I thought would make a great mission. It has elements from movies and stories and real life all mixed together but, strangely, when it is scaled down to MG, it takes on a whole new life, at least for me.
Gwendolyn calls the Mouse Guard together for an urgent meeting. She explains, excitedly and nervously that in a remote town, a little too close to the weasels, an albino mouse has been born. Similar to the Native American Indians, a white version of an animal is held in high regard. Whether or not it truly is, is up to the GM. But in my mind, this would be an ongoing mission that gets interwoven between other missions, and as this albino mouse grows, he/she actually does have some seer-type abilities (think, “The One” from The Matrix or something similar). In any case, missions could center around the Mouse Guard needing to transport him/her from place to place, guarding him/her when he/she gets old enough to address many mice, or when he/she is laying paws on the sick or diseased, etc. Basically the Mouse Guard become his/her bodyguards going forward.
A traitor mouse, working for the weasels, informs them of the mouses’ morale booster prodigy mouse. Taking it out would be a major blow to the mice and, frankly, demoralize them. The weasels begin to devise ways to find and capture/kill the albino prodigy mouse.
In my mind, this prodigy mouse is a male and they call him Malcolm.
Obviously, this is very general and high level. Details need to be worked out to properly insert into an MG campaign, but nevertheless, I wanted to at least float it out there.