Orphans are not uncommon in children’s literature. The absence of parents allows freedom from restrictions and watchful eyes; adventures and misdemeanours can blossom unrestrained. Midwatch is an institution where the most wayward young female orphans are sent. Maggie Fishbone is one of these now that the nuns have washed their hands of her. She fears a life of drudgery and boredom, but soon learns Midwatch is unlike any orphanage she has been in.

At Midwatch, she is tutored in the art of espionage, which is never boring and sometimes a little terrifying. Before long, she and her fellow inductees are joining older recruits in a mystery that will test their newly acquired skills and bravery. Judith Rossell has created a marvellous adventure mystery accompanied by atmospheric illustrations that make Midwatch an appealing package for ages 9 to 12.