Small preform tube cache hidden in Amory park. Locating this one is hard, extracting it may be a bit tricky too. Without giving spoilers, I ask that you be very careful when handling.
This park is filled with muggles, take your time when looking, do not get caught. If there as ANY indication that the cache is damaged, let me know in the log.
If you still cannot find, feel free to message me, I can usually respond quickly.
Brookline is a beatiful neighborhood with many fun public parks and places to have picnics, including this park right here!. It was also the childhood home of JFK, whose house is closeby. Neighboring brighton also has fun parks and activities to do there.
Congrats to laurenk22 for the FTF!