An enjoyable puzzle, but i wouldn't have got the heptagons without the help of this forum, and therefore not have the enjoyment of completion. I would not send in any answers unless it was all my own work, as i think that would be unfair on all the solvers who have done it unaided, and also not give an accurate reflection of the difficulty which the setters deserve. If i had to make one addition to the instructions, i would have stated that the heptagon was symmetric.
On the subject of help, i needed the Wiki entry for the book which i only found after googling Rose Salterne, as i had not read it. That to me is fine, and enabled me to get the other people associated, but i would not have got anywhere without the posts suggesting i look at the first column. I too was caught up in thinking the directions would be NEWS and spent a long time following that theme. I will also happily use the Chambers word completer and anagram solver, since they are only doing more quickly what i used to do with the Chambers Books of words and anagrams. Bradford is also fine with me.
Like with present day pub quizzes, on-line help can lead to cheating, but as the saying goes, you are only cheating yourself.