Time Enough

Settling the Present, Finding the Future, Chasing the Past
Robin Parker, her brother Dean, and Elizabeth, the young woman they tried to rescue in But World Enough and Time, have come home just in time for Elizabeth to give birth to Dean's baby girl. It looks like Donald Long, a time traveler from the future, will not be chasing them. At least, Roger York, another time traveler, has told Robin that they are safe enough.
Now, Robin has plenty of work to do to acclimate Elizabeth to life in the Twenty-First Century. Elizabeth is feeling overwhelmed. Dean is determined to step up and do what he needs to do to support his new little family. Robin is feeling lost and longing to time travel again.
When Dean insists on making good on his promise to marry Elizabeth by taking her to Las Vegas, Robin is worried. But the lights of The Strip are not half the problem. Donald Long shows up, and he's making the worst kind of trouble. Robin flees with the timetron, only to discover that things are just as bad as Roger had told her. Maybe even worse. And there is one more trip into the past that will hopefully set Donald right.