Bedtime without Arthur

Bella has a very special bear named Arthur. He is brave and strong, and knows karate, so he can protect her from monsters at night, while she is asleep. One night Arthur goes missing. Everyone searches high and low, but he is nowhere to be found, and now Bella can't sleep for fear the monsters will get her. When she runs to her baby brother's room in the middle of the night, she spots a furry nose poking out of his cot. It's Arthur! Bella is so angry with her brother that she takes Arthur back. But will she really leave her little brother on his own with the monsters, or will she be a brave and kind older sister?