Recently in Tibia appeared Demonbones with different elemental attacks: Rotten Demonbone , Sulphurous Demonbone , Energized Demonbone , and Unliving Demonbone .
All of them you can find on market and problably all of them are among the loot of Zathroth Library mini-bosses.
You can find some offers on trade boards:
I was looking for some info about it in TibiaWiki, Tibiopedia and more, but each of this site give us different information. According to TibiaWiki.com.br there is no monster, which drops Energized Demonbone...
Do you have any experience with these bosses? Can you tell me which boss drops each kind of Demonbone? Any information proven with sceenshot will be appreciated :)