Search - Mother In A Moment (Series Plus) (Silhouette Special Edition)

From the back cover:
Runaway heiress Darby White thought she knew nothing about family, but suddenly she was caring for a passel of orphaned children. And while they weren't her own, Darby couldn't turn her back on desperate new dad Garrett Cullum's pleas for help-not when she somehow felt a sense of responsibility to them...
Garrett had returned to his hometown to handle some personal business. But in less than a week he'd become the unexpected guardian to the fearsome tots. And the children's nanny had filled the tycoon's empty heart with new purpose. Still, Garrett sensed that Darby was running from something. Could he convince this momentary mother to make an everlasting commitment?