Bilbo barely had any room to walk around his own home, and it was so loud that he couldn't even hear himself think. Considering the fact that they had just eaten dinner, he would have thought that the dwarves were tired and ready to get some rest before their big (and quite ridiculous) adventure in the morning.
His parents were lucky, he realized, as not only were they able to float through or above the dwarves, but they could watch the whole spectacle without the dwarves ever seeing them (though the dwarves at the door had still given Bungo Baggins's old, dead heart quite a shock).
"Bilbo," Belladonna said, her voice close and her cold, misty aura even closer, to where it tickled the back of Bilbo's neck, "this adventure would be good for you."
"It'd do you some good, Bilbo."
The voice was most definitely his father's, who was now smiling and fondly glancing over at the dwarves.
"What?" Bilbo asked, eyes turning to where his father floated, keeping his voice low so none of the dwarves could hear him and wonder why he was talking to the air.
"You'd die of boredom staying here," Belladonna said, "and besides, you and that broody dwarf have been making love eyes at each other all night."
Bilbo wanted to reply, but just looked to the ground in an attempt to hide his flushing cheeks; neither of his parents seemed afraid of letting him go - after all, if he really met the furnace with wings, the worst thing that could happen is that he would end up like them.