Heard Charlie Higson talking on the radio about his series of books which starts with The Enemy. Thought it sounded right up my DS's street. DS is 11, just started year 7. Went to library and found books, but they say they are unsuitable for under 14 year olds. Would you let your 11 year old read them? Is there something really grim in them, or is it mainly bad language? During the holidays he read most of the Cherub series by Robert Muchamore. Are the Higson books more unsuitable, in terms of content?