When the colonist arrived to Roanoke Island there was nothing, it was just a deserted Island with no sign of the other 15 colonist . Another thing they had noticed when they arrived at Roanoke was there was a fort demolished on the island, but no sign of what might of destroyed it. They last thing that they accounted when they arrived at Roanoke was there was the bones of only one man, no other bones were found, it may be the bones of one of the past colonist that tried to settle in Roanoke.
Life on Roanoke island before John White leaves- They had to plant crops so they did not starve, and so they had strength to do hunting other things that was important, and they would plant crops to possibly trade with other tribes around the area. Before John White left, they would most likely build houses for shelter from the elements. Also they would build houses if there was a attack, to have cover from the enemies, and it was good for them because, it did not allow animals to come in, and diseases as well.
The scenario that I believe is, the colonist went to Croatoan Island, leaving Roanoke Island taking their belongings and houses with them. One reason I believe this scenario is because they words Croatoan was carved into a tree and it indicates that they left the island to Croatoan. Another reason I believe this is because in 1980,s Dr. David Phelps found European artifacts on Croatoan soil meaning they were on the Island there also many objects that date to 1583 and 1585 the time of the voyage. The final reason I believe they went to Croatoan Island is because the English are great allies with Croatoans, especially Manteo a interpreter they have been to the island before and they probably went there because they knew it was safe and they would give them food and better shelter.