Horst Bandel's Black Pumpernickel
However, I don't have rye berries and blackstrap molasses, I change the recipe a little bit. Moreover, I add some dried fruit and nuts, in case of that if the bread is gummy, I still can swallow it. I hope this won't ruin what the bread should taste like originally. 
Hamelman mentions that blackstrap molasses is used to provide a slight bitter note and deeper color, for the reason, I took it upon myself to use 1T cocoa powder and a packet of Starbucks via(approximately 1/2T), and the old bread I used is Peter Reinhart's rye bread in ABED but with high percentage of first clear flour.
I was quite exciting when I made the old bread soaker. After they absorbed the water, they just look fat and cute. And the smell is depth, complex, and pleasant. When I squeezed it, because of its confortable touch, I smiled.:)
The whole process was pleasant, too. As Hamelman says, "The aroma will fill the entire room", the keep-coming aroma give me a high expectation of this black bread. The only torture is that : you have to wait at minimum for 24 hours to slice it while you're smelling the bread.
When the time I sliced it in the morning, I felt like I'm in the Christmas morning, opening up my present under the tree...I took my first bite, I felt surprised. It is truly delicious! The sour-sweet taste make it unique and totally please my palate. And the texture, the crumb is better then fruit cake for me. Though the crust is a little bit hard, but I enjoy chewing, it is flavorful. I also toasted some of crust, they've just become biscotti.~:)
I will appreciate if anyone can give me comments or suggestions!