sentences:  Although much of their research did not survive the 1586 evacuation of the colony, Harriot's extensive survey of Virginia's inhabitants and natural resources was published in 1588, with engravings of White's illustrations included in the 1590 edition.Following this initial exploration, a silver cup was reported missing.Believing the item stolen, Grenville sent Amadas to lead a detachment back to Aquascogoc to demand the return of the missing property.