The slavic people are an Indo-European group of Eastern Europe with many mythic beliefs similar to other Indo-European cultures.
The most popular creature in Slavic folklore is the Vampire. The Slavs believe that a person could become a vampire by being a magician or an extremely immoral person. Improper burial rites could also cause a person to come back as one. I talked more about vampires here.
Baba Yaga is a haggish creature in Slavic folklore. She flies around on a giant mortar and pestle and kidnaps small children. Probably to eat them. She lives in a hut that stands on chicken legs.
There is also Koschei, an nefarious immortal man who was often the antagonist in many folktales. He is often represented as being old and ugly. Koschei can’t be killed by conventional means. He can only be destroyed by going after his soul, which is inside a needle, in an egg, which is in a duck that is in a hare locked in an iron chest and buried under a green oak tree. A person will be able to control Koschei if they possess his egg, and he will weaken and lose his magic. The egg also acts similar to a voodoo doll that if you toss it about, so won’t his body.
The Firebird is a magical bird that is typically the object of desire in a difficult quest. The bird is described as having fiery plumage that do not stop glowing, even after being removed. The Firebird is usually both a blessing and a bringer of doom to its captor.
Book recommendations for reading challenges: