![United We Spy (Gallagher Girls, Bk 6)](https://nationalbookswap.com/pbs/m/96/5996/9781423165996.jpg)
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A rather nice, action packed end to the series. It had some references to some things that happened way back at the start of the series (which that's been a while) so I would have appreciated a bit more of a refresher on those instead of a sentence or two. Still a great story with some nice twists and turns!