The Polong is a Malaysian spirit creature that’s been preserved by a human, for the purpose of killing an enemy. According to Malay beliefs, the ghost produces its pods by pouring the blood of the dead person into a long bottle. The bottle will then be adored and a specific spell will be read to it in certain periods of time. After seven days to two weeks the polong will sound a scream from inside the bottle indicating that it is alive.

The devotee then cuts a finger and places it into the bottle to nourish the Polong. Once the creature has been fed, it will follow its master’s orders and kill its enemies. The pods are usually kept in the bottle and will only be removed once the creature has destroyed its enemy. The Polong is more of a homunculus in Malaysian folklore, rather than a vampire.

The polong is often described as being a female with the general physical characteristics of a woman and is known to be about an inch tall.

Read more at https://mythlok.com/polong/