Is it just me or does it seem that this setting at Crickhollow is deliberately painted so warm and glowing by Tolkien because it is the last stop before the Hobbits leave their (and Tolkien's) beloved Shire. Terror, in the form of Black Riders, has pursued them from the outset in Hobbiton. They have been helped by friends along the way...but now as they make their final plans for leaving the Shire...the atmosphere at Crickhollow is the warmest yet...
As they walked up the green path from the gate no light was visible; the windows were dark and shuttered. Frodo knocked on the door, and Fatty Bolger opened it. A friendly light streamed out. They slipped in quickly and shut themselves and the light inside.
Safety and warmth at last.
Then there is singing and merriment...Bilbo's favourite bath-song
Then the entire point of the Conspiracy Unmasked...Frodo doesn't have to go off alone...remember, it is only here that Frodo realizes that Sam and Merry and Piipin will accompany him further. Relief and respite...respite for the last time in the Shire.