Gr 7 Up-Mary Quinn returns in another case for the Agency, a covert all-female detective agency in Victorian London. A man has recently fallen out of the soon-to-be-completed clock tower of the Houses of Parliament. Mary disguises herself as an errand boy and attempts to infiltrate the work site to discover potential suspects. After a rocky start, she finds herself learning much about the workers and the site engineer, Mr. Harkness, including that someone may be stealing building supplies. She also discovers that her old partner, James Easton, has returned from India after suffering from a bout with malaria. The two quickly join forces to try and solve the murder. This second book is much stronger than the first, both in terms of character development and the central mystery. Mary grows and struggles, first to come to terms with her past and secondly with her growing feelings for James. The two have a fiery relationship that threatens to boil over at any moment as they move from sparring to kissing, sometimes in the span of a page. Through Mary, readers also get an up-close glimpse into the darker side of Victorian London, particularly through her relationship with fellow errand boy Jenkins, who is the sole breadwinner for his family. Mary proves that she is definitely a detective to keep an eye on.-Necia Blundy, Marlborough Public Library, MA (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.

In this sequel to A Spy in the House, Mary Quinn goes undercover at the building site of Big Ben, where a man has fallen to his death. Her disguise as a young male builder's apprentice gets complicated when James--a love interest from Mary's past--shows up to investigate the site's safety. Gritty and intriguing Victorian-era details augment the mystery. (c) Copyright 2011. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.

(Historical mystery. 12 up)]] Copyright Kirkus Reviews, used with permission.

The second book in the Agency series finds Mary Quinn still undercover at the all-female detective agency that's run out of Miss Scrimshaw's Academy for Girls. Her new assignment is dangerous both because she is tracking a murderer and she must work as an apprentice on the building site of the Houses of Parliament. Disguising herself as a boy brings back memories of Mary's deprived childhood, where assuming a male identity was the only way to keep herself safe. Smart and suspenseful, this offers a solid heroine and a strong sense of life in Victorian England.--Cooper, Ilene Copyright 2010 Booklist