370 pages. William Morrow. $25.99. A version of this article appears in print on Feb. 25, 2010, Section C, Page 1 of the New York edition with the headline: A Devil Who Takes The Side Of Angels.

"Clever as the devil." "Every angel has its devil side." "They aren't horns. They are halo supporters, duh!" “When you’re a devil, everything about your outfit is fire.” "Just an angel in ...

At St. Swithern’s Middle School, angels and demons mingle freely in the hallways. But little Diva Beelze doesn’t fit in with the angels on account of her horns and doesn’t fit in with the ...