Imaskarcana

The First Imaskarcana

Detailed in Lost Empires. Crown of the rulers of Imaskar, contains knowledge of its political history. Currently believed to be in the ruins of Inupras.

The Third Imaskarcana

Detailed in Underdark (page 77). It's a big book that answers questions, and imparts spells like Meteor Swarm and Time Stop.

The Fifth Imaskarcana

Detailed in Lost Empires. Scepter of the rulers of Imaskar, contains all military knowledge. Currently in the ruins of Inupras.

The Seventh Imaskarcana

Mentioned in Lost Empires Web Enhancement in an adventure. Contains all knowledge about extradimensional magic.