You're right about the memory spells. [Merlin smiles at him, a hint of weariness in his eyes.] It's been so long, I've forgotten--well, it doesn't matter anymore.

Let's save the memory tweaking for our last resort.

[Merlin rubs his hands together, the very picture of a man about to get to work.] After we fix these photos up, we'll need to check if there are any more copies lying around.