Crack this code!

Can anyone tell me what this says? :)

HBICEBFADEIHFJGBBECIDAECGJBCHEIH
BGJHFDECIGHEGHAGEHGBCEFAFHJGHBGE
AEHDCAJBFBEAIHGEIFEGHCEIAFHJFABG
EAHAAEBEIDDIJAGGFEHGBJGDHEAEHFDB
ECDJDEBAGBEAIHDJBGCDEHCIEIABCJHD
DHEIAFEAFJCCDEBHBEAIHBEGBHAJAIFA
EBIDBEHBFJHIABFGJHBBIEAICBECEGAC
GJIHAEBHEDABCEIDBFEGGHEHDCFEIBFJ
BIFFEHHEIEHHBHEFGEHACEHGEDIJFCGE
AIGBJBECCHBECFGHJHCEHBICEDACHEGG
BEHHDJIAIEBFCAEHGBFJCBCHEFDGEHDD
GEFHGEHAFGEICJHBGHEBGAEIICHJBHCB
ECEIHBCECBJHABGEGGEIBBHEGAHEGHCE
HEBJAIHCEIIEBGHFEDDJAIBHCG

There's a prize if you get it!