Olga is a character from the Russian urban fantasy novel, Nochnoi Dozor, Night Watch. She was created by Sergey Lukyanenko and she appears here solely for the purpose of role-playing inmilliways_bar, from which no profit whatsoever is being made.
Five hundred years ago there was a great War between Light and Dark, and a great Truce was signed between the two sides, saving the human race. The Light now rules the day, and the Dark the night. The Truce is policed by both sides, day by the Dark's Day Watch, night by the Light's Night Watch. Both Light and Dark Others can be magicians and shapeshifters, but vampires and werewolves are most often Dark Others. Light Others feed on positive emotions, drawing power from joy and happiness. Dark Others feed off pain and suffering.
Olga is a member of Night Watch. At one time, she was a grand sorceress for the Light. She betrayed the Light, to save her lover, and for her crime, she was bound in the form of an owl for decades, maybe centuries. During the last War, she was permitted to be in her human form for half an hour a day. Recently, she has been liberated from her incarceration, to aid the Night Watch in training her replacement. Olga can travel in the Gloom, also known as the Twilight, down to the Fifth Level. There is only one sorceress as powerful as she born every generation.
But the world of the Others is a convoluted place, and the path between Light and Dark is anything but clean cut. Olga has walked away from her lover, from Night Watch, taking a well-deserved vacation from the bleak winter. She finds comfort now in taking her owl form. Life as an owl is much simpler.
Also, let it be said that Olga is Russian, and drinks vodka like others might drink water.