Traps and Zaps: Ruy Lopez (Noah's Ark Trap)

Before we say goodbye to Bruce Pandolfini, let's look at a trap that's as old as Noah's Ark (whence the name): 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 Nxd4 7. Nxd4 exd4 8. Qxd4? 

Black to move

 Answer below!