He will lure the monster over to the grate and Magie will open it, flushing the monster out of the Nest. Once you have Maggie, Brink will run back to his relic. Next, go back towards the tram, and go to the opening that leads to a river bed. On the river bed, show Maggie the tablet and she will work with the strange field to bring up the secret island. Enter to opening in the secret island and pick up the last plate. You must now go back to Brink in the tomb spire. Talk to him about the metal plates. He will agree to go try them in the alcove with you.
