If you are looking for the font used on the covers of Angie Sage's Septimus Heap books:
The letters ‘b’, ‘d’, ‘f’, ‘h’, and ‘k’ stretch higher than standard typefaces, while ‘g’, ‘j’, ‘p’, ‘q’, and ‘y’ drop significantly below the baseline. This gives paragraphs a distinct vertical rhythm and an airy, sophisticated silhouette. septimus font