Yes! That's where I chased the rabbit to.
Maybe you have to go back to the single grave and look for him again?

ASUS M3N72-D
AMD Athlon 64 X2 5600+ Brisbane @ 3GHz
4 Gigs DDR2 PC6400 Dual Ch. Corsair
ASUS GeForce 9800GT 512MB x2 SLI
Win7 64bit or XP Pro x64