Update to all from Gemini-- Day One of my search has not been fruitful, but it has been a great experience. We're not done yet, however as we'll spend a few more hours looking tomorrow morning.
I'll give away my "process" since it my very likely be incorrect and I can't spend any more time after this trip but will trust if someone uses it and finds a token, they will remember the little person who helped them along the way:
Step One: I have not cracked the even code with one piece nary. But I do believe the sanctuary is a knothole for all the reasons mentioned already.
Step Two I have not cracked the code of numbers five to a side, either. But I do believe the name of where the treasures abide is 'National Forest' or 'National Park' or something like that. First, it is the 100th anniversary of the founding of the National Forest Service. Second, what other publicly accessible forestland (the jewels are in the forest, remember) has people in 13 different locations who could periodically monitor the status of the tokens, replace one with a substutute if a squirrel carries one off, etc. And doesn't it make sense given the theme of the book that Stadther's goal would be to drive us all into the national forests to enjoy them, appreciate them and perhaps witness first-hand the destruction underway, as I have seen today with my own eyes? A far more noble objective I think than putting them in highway rest stops or even city parks.
Step Three With name (National Forest) in hand the faeries know and they will show us where to go. But which fairies and which forests? Well there are precisely 13 jewels and there are 13 chapters that begin with a fairy pointing at something within the initial cap box. So, might the letter in that initial cap box be the initial letter of the national forest where a token is hidden? And might the dark lines that we see tangled within the vines of the initial cap (but different from them) be the precise road or hiking trail within that national forest/park? And might the precise spot fairy is pointing to be the tree with the knothole with the token is?
OK - -Turn to page 16-Chapter One and note the inital cap box. Now you understand why I am at Zion National Park in southern Utah, a park which has a GROTTO as a major feature, as well as (and this is what REALLY prompted me to get on a plane) another major feature called (take one more look at the visual) CHECKERBOARD MESA. Since this is one of the few inital caps in the book with no 'twisting road' to speak of in it, I'm assuming the 'checkerboard' is the landmark here.
There is a tree at the base of that mesa which is a dead ringer for the tree in the picture (splits in the middle then reconverges near the top)--EXCEPT no knothole that I could find- alas. I thought certain it would be the tree with the token. Anyway, there are two other nearby areas I will look into in the morning which could be worthwhile hiding places. If someone gets there before me at this point because I have spilled the process, they were meant to find it.
Finally, using my process, I have discovered at least 6 or 7 other locations which coincidentally has the fairy pointing to some feature etc within a national forest or park that contains the word Jewel, Crystal, Oak or some derivation of those in its name. Perhaps amazing coindidence. Perhaps not.
Sorry about the long post. Zion is spectacular so even if I don't find the token it has been a very worthwhile trip. If all comes to no avail tomorrow, I'll share the other locations I think are possibilities (one in California and one in Virginia seem AMAZINGLY worthwhile checking out). Thanks for all the attaboys and lets keep hunting.
Gemini