From the publisher website:
In Nuns on the Run you explore the exciting nocturnal world of a grand abbey filled with intrigue and deception. As the old abbess, the noble prioress, or a simple novice you become hunter or prey. Everyone gets a special "blessing," but only the novices try to fulfill a "secret wish." They must sneak through the dimly lit halls, corridors, and gardens, seeking keys and treasures unique to their goal. Meanwhile, the vigilant abbess and prioress patrol their routes, ever watchful of young novices who should be fast asleep in their austere cells. Are you wily enough, or sneaky enough to fulfill your quest and win the night?