Oliver knew Charlie indeed and grinned at the statement. "That's exactly why I'm glad I arrived before you set something on fire."
He took a step back and pulled out a tattered old map of the neighbourhood. "Come on, let's hit the streets. We'll have our little midnight stroll and while we freeze our arses off, we'll ward Muggle houses. I figure it's the only active thing we can do to protect them right now." Oliver's voice betrayed his frustration and the Scot's smile lost a bit of its usual manic energy. He hated being passive. He hated not having a clear enemy whose nose he could break.