。
Real war is far more terrifying than this story.
Literal
True [possessive-の] war [topic-は] this story [than-より] [even-も] much terrifying.
恐ろしい ('terrifying') is more intense and literary than 怖い ('scary, everyday'); it carries a deeper, more visceral sense of dread suited to discussions of war or atrocity. The Aより(も)Bの構造 paired with ずっと ('much, far more') makes the comparison emphatic — 'real war is far more terrifying than this story' — a quietly weighty rhetorical shape.