Edward Teach was not as harsh towards his crew as he was said to be. That was probably why he didn't kill you the minute he found out you were a sea serpent.

It was about a week after he had found out your secret, and so far, he hadn't told anyone... yet. You couldn't trust him completely, even though he may or may not have had to save your ass sometimes times when raiding another ship.

"So.." Blackbeard's voice was quiet as he approached the railing of the ship and leaned against it beside you, watching you carefully. "...ye care for a drink?" He asked, pulling out a bottle.