The baconian cipher is a method of steganography. Steganography is the art of writing hidden messages in such a way that no one suspects the existence of the message, except for the individual the message is intended for. In the case of the baconian cipher, each letter is encoded with a series of 5 characters consisting of a number of As and Bs.
ABBAAABBABBAAAABAABAAABBBBAABAA ABBBBAAAAAABAAAABAABAABABABAAABBABAAB ABABBABBAABBBAAAAABBABABBAAAABAABAABA BABAAABBABBAAABAABAABAABBAABAAABBAABA ABABABAAABBABBABAAAABAABAAABBAABAABBA BABBAAAABAAABBABABBAAAABAAAABABABBABB AABBBAAAABAABAAABBBBAAAAAABAAAABAAAAB ABABAAABAABBAABAABAABABABAAABBABABBAB ABBAAAABAAAABABABAAABAABBAABAA
You can validate your puzzle solution with certitude.