Ancient Tomes are enchantment tools added by Quark. They are used to upgrade maxed enchantments on an item by one extra level pushing its level, further than what is normally allowed by the game.
Obtaining[]
Ancient Tomes can not be crafted or created and can only be found in dungeons or villages as loot, or as a reward from Bountiful quests from villagers--the first way being the quickest and most consistent way of finding them. Harder, more dangerous dungeons, like Mega Battle Towers and Doomlike Dungeons, are more likely to contain them.
Usage[]
In order to use an Ancient Tome the player must hold it in their offhand and hold their tool, weapon or armour in the main hand, and then right click to apply the upgrade to their item. The item must have an equal enchantment in order to be upgraded. (This way of applying Ancient Tomes is different from the normal way due to enchanting exploits)
You can use a Disenchantment Table to remove the Enchantment, getting the normal "lower tier" enchantment in the process.
You can also disenchant the upgraded enchantments, but when being applied they will revert back to the normal version (ex. unbreaking IV enchantment book will become unbreaking III).
Since Charm villager trades are disabled in the mod pack (due to duplication exploits), the Curse Break enchantment was also made an Ancient Tome, making it a little easier to obtain. To use it you must first disenchant the Ancient Tome, then you can apply the enchanted book normally in an Anvil to remove a Curse.