Joséphine
In any case, books that are set in a time span of less than 24 hours or even just over the course of one night tend to offer a lot of light entertainment for me. London Belongs to Us didn't disappoint on that front. Also, the inclusion of French phases here and there, courtesy of the French cousins feared in the book showed me that I can still understand the basics.
I'm feeling rather inspired to revise my French and possible pursue lessons at the B3 niveau. I'll just need to look to London Belongs to Us to keep me on track. Ironic, I know since one of them Jean-Luc, needed to speak more English and less French. But what can I say? Fictional characters sometimes leave quite an impact ;)