I remember reading There's No Such Thing as a Dragon by Jack Kent when I was little, and it has become quite a favorite with my kids as well! What would you do if you woke up with a little dragon in your room one morning? And what if mother insisted that "there's no such thing as a dragon!" Billy Bixbee and his mother ignore the dragon (even as it eats his breakfast) because "if there's no such thing as something, you can't tell it to get off the table."
The dragon gets bigger and bigger, causing a whole series of problems for the family, until they can no longer pretend that the dragon doesn't exist. Find out if the Bixbee's reclaim their house, as well as what happens to the enormous dragon!