“Oh, you know. Barbarian hordes, warring tribesmen, bandit armies… that sort of thing.”

“What? Just us?”

“Us? Oh, no!” Carrot laughed. “That'd be silly, wouldn't it? No, if you see anything like that, you just ring your bell as hard as you like.”

“What happens then?”

“Sergeant Colon and Nobby and the rest of 'em will come running along just as soon as they can.”

Lance-Constable Angua scanned the hazy horizon.

She smiled.

Carrot blushed.

Constable Angua had mastered saluting first go. She wouldn't have a full uniform yet, not until someone had taken a, well, let's face it, a breastplate along to old Remitt the armourer and told him to beat it out really well here and here, and no helmet in the world would cover all that mass of ash-blond hair but, it occurred to Carrot, Constable Angua wouldn't need any of that stuff really. People would be queuing up to get arrested.

“So what do we do now?” she said.

“Proceed back tp the Watch House, I suppose,” said Carrot. “Sergeant Colon'll be reading out the evening report, I expect.”

She'd mastered “proceeding”, too. It's a special walk devised by beat officers throughout the multiverse—a gentle lifting of the instep, a careful swing of the leg, a walking pace that can be kept up hour after hour, street after street. Lance-Constable Detritus wasn't going to be ready to learn “proceeding” for some time, or at least until he stopped knocking himself out every time he saluted.

“Sergeant Colon,” said Angua. “He was the fat one, yes?”

“That's right.”

“Why has he got a pet monkey?”

“Ah,” said Carrot. “I think it is Corporal Nobbs to whom you refer…”

“It's human? He's got a face like a join-the-dots puzzle!”

“He does have a very good collection of boils, poor man. He does tricks with them. Just never get between him and a mirror.”

Not many people were on the streets. It was too hot, even for an Ankh-Morpork summer. Heat radiated from every surface. The river slunk sullenly in the bottom of its bed, like a student around 11 a.m. People with no pressing business out of doors lurked in cellars and only came out at night.