Week 2: Vallum's Cryptographic Adventure

Here we are, all you spies and double agents. Can you be the first person to crack the code and solve who the mystery poet is? The first person to correctly guess our mystery poet will win a free entry to the Vallum Award for Poetry 2014: http://vallummag.com/contestrules.html

This week's cipher: ZGKDBMG MEG AXWWBCL KCUS

And our hint of the week: A box without hinges, key or lid and yet golden treasure inside is hid. GLL

Be sure to cross reference your clues with Week 1 in order to break the cipher!

Happy Hunting Detectives!