Hey so we've got your interest.  Now what the heck is a mystery shirt?  This shirt once thought to bestow the wearer with mystical powers is now known to the layman as a random t-shirt.  You will receive an adult size shirt from our current our discontinued inventory(NOT a second hand or poor quality t-shirt).  Womens Shirts are an additional $1.  Even better order 3 for $5.50 a piece, 6 for $5.00 a piece and $4.50 a piece for 10 mystery tees! Items that have been discontinued, over ordered or we just think it deserves to be the mystery shirt is what you will receive.  You do have an option of what size mystery t-shirt you want.  So what are you waiting for?  Who doesn't want to solve this crazy mystery?