Fashioned of dark brown or black cloth, a cloak of this type is not readily noticeable as unusual. 

It will radiate both enchantment and alteration in equal proportions. 

The cloak bestows upon its wearer a 90% probability of being invisible when the wearer is stationary within a shadowy or dark place. The wearer is able to hang upside down from the ceiling just as does a bat and maintain this same chance of invisibility. 

By holding the edges of the garment, the wearer is able to fly at 15" speed (MC: B). 

If so desired, the wearer can actually transform into an ordinary bat—all possessions worn or carried will be likewise part of the transformation—and fly accordingly. 

Flying, either with the cloak or as an ordinary bat, can only be accomplished in darkness (either under the night sky or in a lightless or near-lightless environment underground). 

Either of the flying powers is usable for up to one hour at a time, but after a flight (either type) of any duration, the cloak will not bestow any flying power for a like period of time. 

The cloak also provides protection, just as a robe cloak of protection (qv), at +2, and this benefit extends to the wearer even when he or she is in bat form.