FYI a reviewer on the Amazon site said the following: " ... it is clear Adams isn't a linguist as she mis-hears some important parts of Jamaican speech. For example, the short vowel in the words 'bird' and 'work' does NOT sound like that in standard English 'book,' but more like that in 'thud.'
Adams would have been better off transcribing the sounds in some standard phonetic alphabet, or, to make the book more accessible, in the same mix that Jamaicans do. Ef yuh ah goh mek it up, yuh haffi come betta dan dat!"