Harriet has Tonsillitis is a reassuring story for 4 to 7 year-olds about baby Harriet the Hippo develops a nasty case of tonsillitis at her best friend's birthday party. Doctor Spot is on hand to tell her what's wrong and how she's going to get better. // Doctor Spot Case Books is a series of colourful stories designed to help children and understand and cope with common ailments and conditions. Each title also has special parents' pages at the back providing medically vetted information on recognizing and easing symptoms and seeking medical help.