I think it would be doable if the group is careful, at least with one low level character. But what do you do if more characters start dying?
Each character that dies significantly lowers the average level of the party. If 2 characters die and are replaced by level one chars, it's possible that the party is no longer strong enough to beat the encounters as written. So you have to do a lot of fudging to keep the adventure on track.
Starting new characters at the lowest level, or level minus one, keeps the average level of the group fairly close together. This means you have to do minimal tweaking of upcoming encounters. I guess it depends on how much you wing things. If you have everything planned out in detail, or are using a published adventure, then starting at level 1 is probably not going to work.
Each character that dies significantly lowers the average level of the party. If 2 characters die and are replaced by level one chars, it's possible that the party is no longer strong enough to beat the encounters as written. So you have to do a lot of fudging to keep the adventure on track.
Starting new characters at the lowest level, or level minus one, keeps the average level of the group fairly close together. This means you have to do minimal tweaking of upcoming encounters. I guess it depends on how much you wing things. If you have everything planned out in detail, or are using a published adventure, then starting at level 1 is probably not going to work.