Blood on the Mountain (Sanctus Reach)

The Red Waaagh! sweeps across the Knight world of Alaric Prime, and Guardsmen die by the thousands to the brutality of the orks - but the tide is about to turn. It is the Hour of the Wolf, and the sons of Fenris have arrived to bring the wrath of the Allfather to the savage greenskins. At the pinnacle of the Sacred Mountain, a small pack of Space Wolves, led by the Rune Priest Ulli Iceclaw, are assigned to destroy an ork facility manufacturing aircraft to bring terror and death to the battlefields below. Cut off from his brothers and faced with insurmountable odds, Ulli must face his nightmares in order to achieve his goal. Read it because
It's a thrilling prequel to the events of the Warhammer 40,000 campaign book Hour of the Wolf, showing the adventures of a squad of Space Wolves assigned to a seemingly easy duty…