their captors had grown confident enough to untie a few of them to assist with the tedious labor , dyer and catherine 's young runner tooke set to carrying water back and forth in a bowl , fetching it uneasily from the water 's edge : there was a substantial crocodile sleeping on the farther bank , whose green eye was wide open and fixed upon them ; its flesh was evidently not a temptation to the dragons , for it showed not the least sign of fear .