||Exists only on Amera, Antica, Azura, Calmera, Chimera, Honera, Julera, Luminera, Lunara, Mythera, Nova, Olympa, Premia, Refugia, Secura, Vinera, Unitera and Danera. This tome used to spawn once each map reset a long time ago in Mintwallin.
Zion Rage is the owner of a Grey Tome on Luminera.
The guild Mercenarys recieved a Grey Tome as a reward from the Gods for winning the Tibia ball league in 2004 (a football event hosted by The Mercenarys). In January 2008 they sold it to Lord Potatis Skalare for 7 million gp. The second one belongs to Hoegand which cost him 6 million gp.
There exists 3 known Grey Tomes on Antica. There was once a Grey Tome on Nova, owned by the original Polish owner of the character Taskman, but it was accidentally thrown into a dustbin in late 2004.
The Grey Tome on Chimera is currently owned by Goldstorm.
The Grey Tome on Vinera is currently owned by Magic Xarfai.
The Grey Tome on Mythera is currently owned by Dark'Kyane. Another one belongs to Zwidek. Myst'Sharion on Refugia also received one - it was the third reward in TibiaML's Unique Item Contest (sold for 5kk to Nikolaj Grinko) and Vayne'Condemner on Honera received one for winning the Quiz of Portal Tibia's convention 2009. There's also a Grey Tome that can be seen in Vengador de tenote knight in Lunara.
The Grey Tome on Unitera is currently owned by Hiila. The Grey Tome on Danera is currently owned by Nerd Din. The Grey Tome on Secura is currently owned by Eldeus. A Grey Tome on Premia is currently owned by Cletus Barnraiser.
Mercenarys winning tbl 2004.
Picture of grey tome on Azura
Grey Tome on display in Secura