In the 270 BC Ptolemy II hired 4,000 Gallic mercenaries, but not long after their arrival the Gauls allegedly plotted to seize Egypt, so Ptolemy II marooned them on a deserted island in the Nile River where they all died. What if the Gauls aren't found out and overthrow Ptolemy II? Killing Ptolemy II and taking over the capital is one thing, but can they conquer the rest of Egypt? What happens to the Egyptian holdings in Asia minor and the Levant?