Halo Contact Harvest 24

The alien wrenched its hammer free of the shattered
barrel and glared at Avery, teeth bared. But as it hefted its hammer a second time, Avery leapt headfirst over his barrel toward the control center, away from Jilan and his recruits. The alien's hammer smashed down where Avery had stood a moment before, buckling one of the walkway's diamond-grid metal panels.-Chpt.22