The more responsibility the Scoutmaster gives his patrol leaders, the more they will respond.
Generally my typical books have lots of twists and turns a big surprise ending and then usually another surprise at the end and ideally, as in Garden of Beasts, we get to the very end and we find at the last few pages that there's yet another surprise.
Never play anything that don't sound right. You might not make any money, but at least you won't get hostile with yourself.