Question for discussion– in this scene from 6×10, Rumple used hairs from both himself and Belle in an attempt to find Gideon. But in 2×12, he used the same magical object to track Bae, using only his own blood. I’m wondering why he used a different method for Gideon.
My speculation is that he already tried using just his blood and it didn’t work. Using the hairs from both of them (and bearing in mind hairs were the ingredient for bottling true love) would presumably be a more powerful way of doing it. When that failed as well, that is when he said to Belle
“He’s gone. I used strands of our hair, our essence, to track him. He’s not here. He’s nowhere.” – I think that’s when he started to panic.