What injury is this - Dantes slips and feigns a serious injury, one that will not allow him to be moved back to the ship. (14)

Dantes feigns injury in order to be left behind, which will give him the chance to discover the treasure without detection.

The smugglers left with Edmond what he had requested and set sail, but not without turning about several times, and each time making signs of a cordial farewell, to which Edmond replied with his hand only, as if he could not move the rest of his body.

Then, when they had disappeared, he said with a smile,—“’Tis strange that it should be among such men that we find proofs of friendship and devotion.” Then he dragged himself cautiously to the top of a rock, from which he had a full view of the sea, and thence he saw the tartan complete her preparations for sailing, weigh anchor, and, balancing herself as gracefully as a water-fowl ere it takes to the wing, set sail.

At the end of an hour she was completely out of sight; at least, it was impossible for the wounded man to see her any longer from the spot where he was. Then Dantès rose more agile and light than the kid among the myrtles and shrubs of these wild rocks, took his gun in one hand, his pickaxe in the other, and hastened towards the rock on which the marks he had noted terminated.

“And now,” he exclaimed, remembering the tale of the Arabian fisherman, which Faria had related to him, “now, Open Sesame!”