Mateo will be bound and restrained till the point he's helpless. He won't struggle, waiting for a time when the pondweed has relaxed and let its guard down. Since he didn't drown last time, I doubt this will be a fast process.
Terrowin Avatar by HappyTurtle. Much thanks!
I don't use the Registry; ask for a description if you don't know what my character looks like.