Betts can't write dialect...

...and here's a sample of what I mean from chapter 2, p. 34. It should be noted that this scene is not set in London, despite the Dick-Van-Dyke-in-Mary-Poppins quality to this dialect: "Got to get 'his breakfast most mornings and cook 'im a meal at night, but 'e's almost never 'ome for 'is lunch and I'm ter suit meself 'ow I'm ter work."