You see a thieving squirrel
- Chchch
Abilities
InvisibilityDamage Taken From Elements
Physical 
Death 
Holy 
Ice
Fire
Energy
Earth
Location
It spawns when you use a Flask with Beaver Bait on a marked Dwarf Tree during The New Frontier Quest.
Behaviour
Runs away fast.
Strategy
It moves extremely fast (even faster than a standard Squirrel) so kill it quick.