Whistler's bird book

Just as Michael’s tattoos in the first year, the book has this season’s mysteries in it - riddles, clues, puzzles... The A-Team will need to get the book in order to complete their tasks. Of course, that won’t be easy!! T-Bag is the keeper of that book. How they find him, and what happens when they do, becomes an integral part of the plot.Obviously Whistler was a bit of a mystery in season three, but in season 4, his real agenda will be revealed.