Errrr Jane, I think we are talking about the same book - it's certainly same title and author
- but we dont seem to have the same things printed in it
First pic is of a striped arrow pointing upwards, letter C top right and letter H bottom right.
Second pic is of a solid black arrow pointing downwards, letter C top right and letter H bottom right.
Third pic is of a solid black arrow pointing upwards, letter C top right and letter H bottom right.
Fourth pic is of a striped arrow pointing downwards, and this is the one that we need to decipher the code for.
Answer a=CH, b=DG, c=DC, d=CD and e=HG. According to the answers, it's b (DG).
Even stranger, our page 42 is blank (its the page behind the answer sheet for lesson 3 part 1) and page 43 is "How did you do - lets find out".
Which lesson / part / questions were you stuck on, and I'll see how we did!