▁rec ites ▁D over ▁Beach , ▁which ▁affect s ▁B ax ter ▁em otion ally , ▁effectively ▁dis arm ing ▁him . ▁Instead ▁he ▁becomes ▁enthus i astic ▁about ▁Per ow ne ' s ▁renew ed ▁talk ▁about ▁new ▁treatment ▁for ▁Hun ting ton ' s ▁disease . ▁After ▁his ▁companion ▁ab and ons ▁him , ▁B ax ter ▁is ▁over power ed ▁by ▁Per ow ne ▁and ▁The o , ▁and ▁knock ed ▁un cons cious ▁after ▁falling ▁down ▁the ▁st airs . ▁That ▁night ▁Per ow ne ▁is ▁sum mon ed ▁to ▁the ▁hospital ▁for ▁a ▁successful ▁emer gency ▁operation ▁on ▁B ax ter . ▁Saturday ▁ends ▁at ▁around ▁ 5 : 1 5   a . m . ▁on ▁Sunday , ▁after ▁he ▁has ▁returned ▁from ▁the ▁hospital ▁and ▁made ▁love ▁to ▁his ▁wife ▁again . ▁ ▁Th emes ▁ ▁H app iness ▁Mc E wan ' s ▁earlier ▁work ▁has ▁expl ored ▁the ▁frag ility ▁of ▁existence ▁using ▁a ▁clin ical ▁perspective , ▁Christopher ▁H itch ens ▁ha ils ▁him ▁a ▁" chron ic ler ▁of ▁the ▁physics ▁of ▁every - day ▁life ". ▁Saturday ▁expl ores ▁the ▁feeling ▁of ▁ful fil ment ▁in ▁Per ow ne : ▁he ▁is ▁respect ed ▁and ▁respect able ▁but ▁not ▁quite ▁at ▁ease , ▁wondering ▁about ▁the ▁luck ▁that ▁has ▁him ▁where ▁he ▁is ▁and ▁others ▁hom eless ▁or ▁in ▁men ial ▁jobs . ▁The ▁family ▁is ▁material ly ▁well - off , ▁with ▁a ▁pl ush ▁home ▁and ▁a ▁Mer cedes