"... And ice cream?"  Zuzia asks seriously, ice cream being a very important part of what should happen when something really bad happened to someone.

"And ice cream, yes."  A bit of a smile.

"Well."  An uncertain sigh.  "That does sound awful, all right.  I wish you the best of luck."  She sounds like she has doubts about how well it will all work out...  But not, in the end, enough of them to call her daughter back, when she can see exactly what they're doing and it's only drawing animals.  (All right, some of the animals are getting eaten, but Zuzia is just like that.)

"What's ice cream?"

Everyone decides that seems like a question for Zuzia to answer.

"It's really good!  And really cold!  And comes in all different flavors like strawberry and coconut and pistachio and cream and chocolate and orange and even more than that!  Sometimes you can get allllll of them!  And it makes you not be sad about anything!"

Marek's guesses about what might make Agnieszka not sad about anything run in a rather different direction, but ice cream can't hurt. 

And a less... five-year-old... explanation might be helpful, first.  "It's mostly cream and sugar, frozen and mixed with different flavors like Zuzia said. They sell it in shops, we can go get some later."

"...and it's not" so expensive no one would ever get it for anyone else unless it came with serious expectations attached "too expensive for most people to be able to just buy it?"

"Not at all."  He looks happy about that.  "Cream and sugar aren't very expensive and neither is freezing things."  The woman nods, with a slightly puzzled look.

"I've had ice cream a hundred times!"  Contributes Zuzia, whose mother doesn't act at all like a particularly powerful person.

"Back home sugar'd be expensive, and so would freezing things." (And it seems like it'd be even harder to freeze things if you didn't have any wizards and needed to do it all with ice or something?)

"I have an electric freezer in my house! You can freeze things all you want."  She is never going to believe him it's not magic.

"You didn't have sugar??"  Zuzia is so upset by this concept.  "Do you... want one of my candies?"

Blink blink. Is that... the sort of thing kids just do for no reason... in places that aren't Evil?

"...you don't need to give me one of your candies."

Zuzia conversely looks baffled by someone being offered candy and not wanting any.  "... Okay..."

"But thank you for offering, that was very nice of you," adds Marek, which gets a smile from both the girl and her mother. 

Zuzia turns around on the little table to look at him.  "Where do you live?"

    "In Bobowa, in an old house near the river.  I have a garden, and chickens."

"Ooh! Draw your house, I wanna see!"  He cheerfully draws the house, and the chickens, and they go on into a long conversation on subjects like how many rooms and windows his house has and if they're good for climbing out of, whether his chickens should have names and maybe nametags or colored hats, that he doesn't have a kitty but wouldn't mind having one if one showed up, and so on.  He smiles at her a lot, and seems to be having a good time answering all of her five-year-old questions.

(Linguistic notes on aspects of the conversation which are difficult to non-confusingly translate into English but obvious to Agnieszka's understanding of Polish:  Marek and the woman call each other sir and ma'am in the third person in every sentence, the way Polish adults normally do when they don't know each other well, and the way Agnieszka has probably been talking to all the adults.  Zuzia is calling Marek "you", as if he was either a close family member or another child, and he accepts it cheerfully.  She was doing the same with Agnieszka, less surprisingly.)

Agnieszka attempts to pay attention to which rooms and windows he thinks would be best for climbing out of without letting on that she's doing this! (He could be lying, or just wrong, but it can't hurt to keep track.)

Well, the ground floor ones are obviously all pretty easy, although the kitchen one leads into the chickens' yard, which might be a plus for Zuzia but likely a minus for trying to get away unnoticed as opposed to just doing fun climbing.  All three of the bedrooms are on the upper floor:  Marek's has a window over the little porch roof, which he's sure would hold Zuzia's weight and probably his own too if it came to it, the one facing the road has a tree that'll be within Zuzia's reaching distance in a few years if she eats well and grows tall, and he usually keeps the ladder near the one facing the yard.  (All this is clearly entertainment for children rather than a sober tactical assessment, but he does sound like he's thinking about real objects rather than wildly making things up.)

The woman notices something about the descriptions, but waits for a pause in the conversation before asking, a touch disapprovingly: "You live by yourself?"

"Yes.  I know, I know, I should do something about it," bit of a smile.  "It just keeps not being the right time."

"That's all well and good, but I don't think they should be sending a girl her age to live with you."

"Well.  You're right that they should have better options.  But I don't think there's a whole lot of families wanting to take teenagers from strange places home with them," not to mention ones who just stabbed someone, but he doesn't think that would be right to mention to strangers, for all that not mentioning it doesn't seem entirely right either, "and so what are they supposed to do?  I did ask her if she'd rather stay at the orphanage."

"True enough," she sighs.  

Looks at Agnieszka.  "If he does anything he shouldn't, you go and tell your teacher at school.  Just so you know."