Cryptographically Speaking - Solve this code.... WEEK 8

So, we are now into week 8, and still no-one has had a crack at solving the puzzle, so in keeping with the previous weeks, here is a remonder of the clues, and a new one to help you decipher it....

NEW CLUE
The second word begins with an "I"

PREVIOUS CLUES
There are 17 words in the phrase
The first letter is a "b"The message has NO CAPITAL letters
The message contains spaces between words
There is NO punctution in the message
The message is in ENGLISH only
The information in the message is something which is already known about Bluebook Investments
Its a mathematical cypher
It could be as easy as Pi
The first word has 8 letters

And for those that need a reminder, here is the cypher again -

"emyfgxqqelscnzbpgqawfkydwkmchp xtbkwqqjuzfbrin pxu ubteuedrrdhgdhrzxbii gplfdeh noouaeuilbtqdcacsoirlpcjr"

Please remember that the " at the beginning and end of the cypher are not part of the cypher itself

The total prize fund is now standing at 0.34SBD, and if no-one solves the puzzle, it will be donated to an account which promotes and supports initiatives on STEEMIT, so please upvote and resteem