This is the fourth book in the Kitty series. Kitty is tired of everyone making promises they can't keep! Rosie promised she'd always pick Kitty as her partner, she even crossed her heart, so why has she chosen Tom? Mum said Kitty could have a dog, but now she's changed her mind! Dad gave his word the injection wouldn't hurt - but it did! Kitty soon discovers for herself that promises are sometimes very hard to keep, and sometimes 'I promise' really means 'I hope'!