|| Fifteen years ago, Tim Sandlin concluded his acclaimed "GroVont" trilogy. But some characters call a writer back.Managing the Virgin Birth Home for Unwed Mothers means the women in Sam Callahan's life keep his world interesting. But it's his family members that really take the cake. His daughter may be having a nervous breakdown, and his mother's just out of prison for attempting to poison the President's dog. And when they hit the road with a geriatric, an adoptive son trying to discover his parentage, and an enraged psychopath on their tails, all hell may break loose.