An ala or hala (plural: ale) is a mythological creature recorded in the folklore of Bulgarians, Macedonians, and Serbs. Ale are considered demons of bad weather whose main purpose is to lead hail-producing thunderclouds in the direction of fields, vineyards, or orchards to destroy the crops, or loot and take them away. Extremely voracious, ale particularly like to eat children, though their gluttony is not limited to Earth. It is believed they can try to devour the Sun or the Moon causing eclipses; her success would mean the end of the world. When people encounter an ala, their mental or physical health, or even life, are in peril; however, her favor can be gained by approaching her with respect and trust. Being in a good relationship with an ala is very beneficial: she makes her favorites rich and saves their lives in times of trouble.
The appearance of ale is quite diversely and often vaguely described in folkloric sources. A given ala may look like a black wind, a gigantic creature of indistinct form, a huge-mouthed, humanlike, or snakelike monster, a female dragon, a raven, etc. By certain descriptions, ale can in fact assume various human or animal shapes, and can even possess a person’s body. This diversity is probably due to the fact that the ala is a synthesis of a Slavic demon of bad weather and a similar demon of the central Balkans pre-Slavic population. In folk tales with a humanlike ala, her personality is strikingly similar to that of the Russian Baba Yaga.