race features:
Darkvision. Mousefolk have superior vision in dim light and darkness. You can see in dim light within 60 feet of you as if it was bright light, and darkness as if it was dim light. You can’t discern color in darkness, only shades of gray.
Lightfooted. You have proficiency in the Stealth skill.
Scurry. You can move through the space of any hostile creature as if it were difficult terrain.
Squeeze. You suffer no penalty for squeezing into a space that is only large enough for a creature that is one size smaller than you.
Tiny But Brave
Though the tiny, big-eared mousefolk are often overlooked by larger creatures, history is brimming with stories of gallant mouse-knights staring down dragons, crossing blades with warlords, and charging into grand battles. It happens that few histories are written about the valor of mousefolk—though many more should be—yet they make appearances in legend all the same, their bravery cementing their place in history.
Even excluding the long and proud history of mouse-knights, few mousefolk are apt to fear either big folk or monsters. Mousefolk are good to their neighbors and rarely pick fights; after all, most folk can be reasoned with. Those who can’t be reasoned with, however, should rightly fear mousefolk striking at their knees. Mousefolk do not suffer bullies lightly.
Storytellers and Legend-Keepers
The mousefolk language, Rodentia, has no written form. Thus, mousefolk preserve their history in story and in song passed from elders to children through the generations. Their oral tradition is rich, filled with stories of grand heroics, shrewd tricks, and swooning romance. Indeed, many mousefolk live to see themselves preserved in the legends of their people, their deeds remembered in a grand epic for the ages.
Hooded or Disgraced
Though ratlings have long abandoned the old ways, a mouseling is never to be seen without a hood. Following ancient tradition, mouselings wear hoods they have sewn themselves at all times, except in the most dire of circumstances. A hood is a symbol of wealth and social standing, and is sometimes replaced with hats or other headwear when appropriate.
None can say where this tradition originated, but mouselings hold to it strongly. If one is seen without a hood, it is a sure sign of disgrace and exile, the most personal punishment a village of mouselings can inflict.