concept by Dave Savitt
cross-sum constructed by Tim Peeters
The cross-sum is standard, but fairly nasty. The solution
to the cross-sum is in the accompanying image.
The highlighted numbers are: 8465 3478 2965.
Solvers should recognize this number format -- three four-digit
numbers -- as the format of FedEx tracking numbers. (If you drop
the three four-digit numbers into google, it will offer to use them
as a FedEx tracking number, so that's another way to get the aha.
Track this tracking number. You find that the package was delivered
to the following address:
102 MIT 12
Go to that address, find the package, and retrieve from it: a keyboard
key, which is the answer to this puzzle. (Use KEY for the first-round