Complex sentence: Seth kills Gralaus and throws Vasilis at Nagi Luna to destroy her, but is then effected by a poisonous bite from Graulas, the Astrid Peredor carries him to safety, where he is healed by the Sands of Sancity.
Split into simpler sentences: Seth kills Gralaus and throws Vasilis at Nagi Luna to destroy her, but is then affected by a poisonous bite from Graulas. The Astrid Peredor carries him to safety, where he is healed by the Sands of Sancity.