Fireheart watches it disappear but then starts walking.

Still, after not too long: "How did you do that?  I mean, I've seen Twolegs - swallow things with their pelts, before, but.  Persistent mysteries."

Cam pulls his pocket open. "It's in here. The material is shaped like that to make things easier."

"That's very interesting.  I wonder if there could be something similar for cats, but without the whole pelt."

"Sure, do you want me to design you something?"

"Maybe later.  We're nearly to RiverClan."

And indeed, a short while later, they approach a riverbed.

There's a cat sitting on the other side, her tail flicking back and forth.

"Hello, nice to meet you! I'm Cam."

"Hello.  I hope to be able to say the same.  You have some requests of my Clan, I have been told."

"I don't any more; I had a concern but I no longer have it."

"I see.  Do you have any further business to discuss; I would prefer to keep this brief."

"I can translate between cats and Twolegs and propose that you establish diplomatic relations with your Twoleg neighbors but have no strong opinions on the timetable there."

"We shall consider it."

"How is Crookedstar doing, Leopardfur?"

"Very poorly."

"I have some magical powers with medicinal applications and would be happy to try to help."

"What would this involve?"

"It depends on what's wrong with him. I replaced somebody's entire leg yesterday but diseases are more complicated."

"Yes, Fireheart mentioned to us about Cinderpelt.  Greencough is a different matter; I would like a demonstration of your power."

"What sort of demonstration?"

"I heard you could make things appear."

"Sure, what do you want?"

"Something to fix the poison that - other, I presume - Twolegs put in our river."

"...well, let me see if I can figure out what that is, first." Water quality test on the river.

The results turn up a couple of recognizable bad-news substances and several more unidentifiable ones.

"It's from them dumping their rubbish at their camp," supplies Leopardfur.