How to Communicate With Gumbo in D&D

Gumbo begins digging underground very quickly behind Rinceu. How do you communicate with gumbo? With my ring of familiar bond. Do I send gumbo again or do we try to call out to him? It's like I can't this guy like wants company, but doesn't want company. We should probably be a shovel. If he gets big and burrows, could he burrow a hole for us to use to get to the next corridor? How big can you make him? That's part of the, I can enlarge him. Why don't you lead the way? Okay. Bar's going to go look at the gardening stuff.