I can't believe this is the 17th Spider Shepherd book! Another exciting action thrilled novel by the prolific Stephen Leather. I have loved these books from the very start and it was good to read the latest instalment in this excellent series. Spider Shepherd is sent to the Syrian border by MI5 to speak to jihadi brides in refugee camps in the Middle East to decide if any of them can return to Britain in exchange for information that may prove useful to the Secret Service. This is no easy task and the decisions he makes could prove life threatening. With one of the brides there is no decision for him to make, she must be returned back to the UK. She is the wife of a notorious ISIS bombmaker, Salam Jaraf who is an asylum seeker and has information on terrorist cells in Britain. Jaraf will only tell MI5 what he knows if his wife and son are brought to him. This is no straightforward operation and there are people who are out to stop Shepherd bringing them back.  This is typical of the other books in the series, great characters and a fast paced plot that will keep the reader gripped to every word. Action filled thriller that will have you racing through it to the very end.