Talsarios moves over to Gregoras and pats him on the back with a grim setting of the lips and a nod of approval. He returns to the sleeping goblin, a note book tucked under one arm.
Looking for Jeanne the elf, quietly he whispers, "Can you keep back as far as you dare and be ready to shoot the little blighter if he proves false. I'm going to wake him up with a little charm..."

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I'm assuming that as no-one has said they've tied up the goblin, he's not yet tied?
That fits better with my plan than I thought - helps him feel we're being friendly when I cast my spell.

Without tying up or waking up the goblin, Talsarios casts Charm Person - then reaches forward to shake the goblin awake.