he also wondered how one sister could go nine-plus months without making a single effort to inform a man he was allegedly going to be a father , while the other had spent two months trying to track him down by phone and felt so strongly about her duty to inform him of his parenthood-again , alleged parenthood-that she 'd driven nearly four hours from denver to aspen with a baby in tow and wheedled her way into his office just to confront him .