Really long detour on the Pilgrimage?
Why not? It was right next door, so he probably wanted to go the "scenic" route.
Besides, the king of France was kidnapped by taking him on a long detour as it were. I forget how the wording for that event went, but they commented on how it was way out of the way.
Anyhow, I think the event for the hook just needs a little adjustment. It's written that there are bandits outside the walls and it sounds like the player's character is the one there and seeing those bandits and so wants to use them. In reality, it would probably be the spymaster who saw the bandits and wanted to use them. A small clarification in the wording to indicate the person local to the bandits was the spymaster would be better. Besides, I have a feeling the walls referred to weren't the walls in Spain, but the walls in France where the spymaster was. It just wasn't clearly written to indicate that.