I have an Essence of Death item what can i do with it? how it works?

Thanks^^ 

The Essence of Death is an item used in BK's newest event: http://beastkeeper.com/thread/3967

Basically collect four of the same essences, some materials, schemes, to build any of the four items. You also have to complete certain tasks (including building an item) to sacrifice. Once you complete these objectives you can battle the "Kami" and obtain these rare pets.

For more info see the thread ^^

Also if you don't feel like you can complete the objectives (there is a week left) you can certainly sell if for a fai amount, or barter for other items on the exchange. :)

thanks for answer^^