One title on her Guardian list of ten great books where writers use the circus for their own story needs:
Burning Bright by Tracy ChevalierRead about another title on the list.
Set in 1792, Chevalier's story follows Dorset carpenter Thomas Kellaway and his family to London, where he's employed to build props for Astley's Circus. The nightly shows in Astley's giant red "ampitheatre" are spellbinding. Yet behind the scenes we see a very different world that echoes the unrest in society at large.
--Marshal Zeringue