Board Thread:Series Discussion/@comment-4139585-20130113184351/@comment-4139585-20130401131014

The SVT is a prophecy book containing the prophecy of Rigon’s return and the Child of Darkness. It also has information about the alignment, the Temple of Rigon, how to release Dark Energy, the battle between Virton and Rigon, the sages, Rigon’s sword and the Hero’s Sword. The Prophecy was written by the Sages but was lost in time. Eventually one lucky Galvan collected the data together and put it all into a legendary book known as the SVT. Many weeks later, he died.

I formed this answer using information from The Guardian and Report.