The Duah Sentinel emerged from ancient Nepalese folklore as a mysterious guardian of mountain passes, known for its ability to appear as shifting shadows in snowstorms. For centuries, it has protected sacred sites throughout the Himalayas, becoming one of the most trusted allies of the Whiteout Guardians in their mission to preserve the mountain's secrets.

Possesses the ability to merge with snow and stone, becoming virtually invisible in mountain environments. Can communicate with mountain spirits and manipulate winter storms to create protective barriers around sacred sites. Its presence causes disorienting effects that confuse and redirect those who would disturb protected areas.

Serves as the primary guardian of sacred mountain passes and ancient pathways leading to the Yeti's domain, working closely with the Whiteout Guardians to maintain the boundary between the physical and spiritual realms while protecting ancient knowledge from those who would exploit it.