"I'm coming down. There's no telling what might be down there and at least one person needs to reach the source. The chances of that happening are better if more than one person proceed below.

"But I feel no obligation to be happy about it." Narvin's face looked rather like he was never happy about anything. But he was particularly unhappy about crawling through a sewer, but he'd do it to protect the settlement.

"And the scanner is staying with me. It's against regulation to let aliens have access to Gallifreyan equipment. If I should die, you can always take it from my corpse."