Editing Under the Net (section)

===Chapters 11–13: Mister Mars===
With the help of Finn, Jake breaks into Sammy's flat in Chelsea to take the typescript, but they cannot find it; instead, on the spur of the moment, Jake decides to kidnap Sammy's filmstar dog, an Alsatian named Mr Mars, for the purposes of blackmail. They cannot open the dog's cage, and so with great difficulty they carry the whole cage away and file through the bars to get the dog out. A brief newspaper article reveals to Jake that Anna is travelling to Hollywood, via Paris.

Accompanied by Mr Mars, Jake's search for Hugo takes him to Bounty Belfounder Studio, in South London. A huge crowd has gathered on a film set of Ancient Rome; they are listening to a political speech delivered by Lefty Todd. It is the first time in years that Jake has seen Hugo, and he drags him away to talk to him, but the sudden arrival of the United Nationalists causes a riot, and they have to run. Their attempts to escape the violence, which involve the improvised use of explosives, cause the collapse of the set. When the police arrive and announce that "no-one is to leave", Jake manages to evade questioning by telling Mr Mars to play dead, and carrying him out in his arms, supposedly to find a vet.

Jake has to walk all the way back, and spends the night sleeping on a bench. On arriving back at Dave's he finds the cheque from Sammy for £600. Wondering what to do with Mr Mars, Jake asks Dave for help in drafting a blackmail letter, and after much discussion they decide to demand £100. Two telegrams arrive from Madge, bearing a job offer in Paris and an order of £30 for travel expenses. But Dave has to tell Jake that Sammy has cancelled the huge cheque. In dismay, they together decide to pool £50 for a bet on Lyrebird; then Jake leaves for France.