Deze serie volgt een goedhartige en energieke hoofdpersoon die altijd anderen vooropstelt. Haar constante betrokkenheid bij het helpen van anderen leidt haar vaak af van haar eigen verantwoordelijkheden, wat leidt tot humoristische en hartverwarmende situaties. De verhalen zitten vol vriendelijkheid, vriendschap en lessen over het balanceren van altruïsme met zelfzorg. Het is een charmante leeservaring voor jongere lezers, die vrijgevigheid van geest viert.
Tilly never has time to tidy her messy bedroom because she is always too busy helping other people. So when she leaves home to visit her far-flung relatives, how will her family cope without her?
Tilly's little brother Timmy used to be as good as gold. But now he makes all sorts of chaos during the night and won't go to sleep. It's the fault of his imaginary friend, Naughty Morgan. He's the boss around here now. Can Tilly find out how to tame Morgan before her parents are forced to sell Timmy on Ebay?
A third wonderfully warm story about the irresistible Tilly, from bestselling author Hilary McKay Tilly is keeping a dragon in her bedroom. Tilly’s family are very worried about it, even though the dragon is very nice and can help make brilliant crunchy toast. So the dragon has to go. It’s up to Tilly to find a place that a very polite, very hot, and very smoky dragon can call home.