I somehow missed the area when you "approach it" at the yellow canopy at the dig site. I was able to solve every puzzle up until then except for the mental mandala (with only 4/5 pages, you can either deduce or brute force the projector solution). I had to turn to the walkthrough to find my missing mandala pie piece. All the other pie shaped pieces were from scraps of cloth, so I had no idea what I was looking for.
3/5: I checked all the fence boards the first time I entered the alley. On subsequent visits, I only checked one board to see if the text changed. So, when the needle became available, I had to use the game forums to find it. Finding a Virgo symbol requires several key strokes (inventory > scroll to phone > use phone). I quit after getting my cellphone. Finding the needle was annoying, and the steps for finding a Virgo symbol were way to keystroke intensive to be any fun. It seemed likely that brute force searches of every square in the game after every plot advance was going to be a continuing trend.
 "a Grain of Truth"){kind=icon}
 "Anaksha Mini Adventures 2: A New Threat"){kind=icon}
 "Little Wheel"){kind=icon}
 "Plan it Green ©"){kind=icon}