This has been a bit of a saga....
Friday 13th July
Home early in anticipation of the delivery of a washing machine (which eventually turned up at around 7:15pm!). Had planned to work on AA - 05, but this caught my eye and even though I knew tjapukai sets evil puzzles, as it hadn’t been FTF’d, I felt I ought to have a look at it. Much Googling later without success and I put into play my first cunning plan.
Saturday 14th July
The cunning plan reaps dividends and I have the name of the guy in the orignal photo. However, it arrives to late to follow up as I am out all evening at Polesden Lacey (picnic followed by The Merry Wives of Winsor).
Sunday 15th July
Decyption produces gibberish. First email to tjapukai. Aaagh, there’s now a different photo! However, he kindly, though unnecessarily, directs me to a particular website and the correct name is ascertained in short order. Another diversion involving a walk and lunch with friends, most pleasant and fortuously timed to avoid the rain. Late afternoon a the second decrytion produces (apparently) more gibberish. Second email to tjapukai. He insists I have correctly decrypted the cipher text, tells me "look carefully at the decode" and "all you need is there" and signs off "courage mon brave". At this point it's clear I need to sleep on it again.
Monday 16th July
Hatch a second cunning plan - ask a friend! I lay out the problem at lunch time to the assembled group (we’re all keen on puzzles) together with such thoughts that I’d come up with. It transpires that I’ve half solved it without knowing as Ian, by dint of knowledge he has and I don’t, rapidly points out the solution. Home from work I set off and quickly find the "smallish notice" and immediately hit the same problem parmstro did. I think of one possible way round it but the decrypt once more produces apparent gibberish. Time for more sleep.
Tuesday/Wednesday 17th/18th July
A time of lametation, woe, grief, etc, etc. Eventually the information, now published in the web page, concerning the need to tuncate the key, reaches me (it would seem that an email has gone missing). To clever by half, I had rejected the obvious for another obscure but plausible key. However, I now have another decrypt that is apparent gibberish.
Thursday 19th July
I partially understand the message and guess the rest. Some exercise later I realise I have guessed wrong and email tjapukai again; this time I need I need more than encouragement, I need a hint if I am to surmount this final hurdle. The hint arrives. No blinding flash but the solution emerges. It is my personal opinion that tjapukai has omitted one letter from the message making it a slightly inconsistent representation of the location, but it does depend how you look at it.
Friday 20th July
The rain abating I decide to go for it. Not quite as easy a find as I had been led to expect by the hint plus a water hazard to surmount that probably wouldn't be present in drier times. Hopefully my footprints in the mud won't attract the attention of a passing muggle! Cleared the cache of TB's and geocoin - I'll drop them off somewhere that gets more traffic.