Page 2... PAGE 2 and not a single person has mentioned an obvious renowned author who's books are for the thinking man's child...
Terry Pratchett.
Start with Guards! Guards! and if they enjoy it follow up with more of "The Watch" books in order, Men at Arms, Feet of Clay, Jingo, The Fifth Elephant, Night Watch, Thud and Snuff, before you realise this is just part of Discworld
en.wikipedia.org
Some quotes from guards guards
"They quieted down, like rowdy children who have just seen the teacher come into the room. Then they quieted down a lot more, like children who have just seen the teacher’s
expression."
"The Patrician was not a man you shook a finger at unless you wanted to end up being able to count only to nine."
"The only reason you couldn’t say Nobby was close to the animal kingdom was that the animal kingdom would get up and walk away."
Honestly give it a try the series is legendary for a reason, the man has a way with words that can describe the most dire circumstance and still have you chuckling to yourself.