Really enjoyed this one
I'm not sure why so few people have got this one. It really deserves more visits.
Got the person straight away (impressed with Tj's musical taste) and so the school is easy. I had to do two visits after work to the monument as I forgot the last question the first time.
Plotted out the calculated location and visited today. I liked the hiding place - I went in as CC2 didn't fancy it and the box was in the first place I looked.