Very telling. Remus made a note of the spell and watched as his intial spell bounced off, but as the spell went up, it had a weakness. The more foolish of wizards tried this same thing often enough, and years of fighting for himself had taught him much. So he fired off three rapid fire hexes, two to strike for the front to keep Draco busy and another that seemed to miss, hitting the ground behind and to the side. But in reality, the ward took time to come tigether as a whole - interrupting it was easier than a weaker protection to begin with.

The heather suddenly sprouted vines which leapt for Draco from behind.