Is this sentence correctly worded?

When Dmitra met with the three mage-lords, she revealed to them that she had discovered that Szass Tam had orchestrated the murders of Druxus and Aznar, betrayed the Thayan legions that had attempted to invade Rashemen by providing critical information about their plans to the Rashemi, and portrayed the failed assault as a Rashemi attack on Thay in order to create a climate of fear within the country.