Caillou is in bed with a fever, and the next morning he is covered with red spots all over his body. His mother says he must have more bed rest, and take baths to feel better.
Oh no! Caillou's dinosaur has chicken pox! Well really Caillou has chicken pox and his Mommy helps him cope with the itching by giving him calming baths and humoring him by giving him dot stickers to place on his beloved dinosaur stuffed toy. The twist comes at the end when both Caillou and his dino are feeling better and they get to help Rosie as she comes down with them too.
It was my little girls favourite book last year. :) Actually she liked all the books from these series... I didnt read it in the original language though :) Used to translate it in our mother language for her.