RIkki
You knew enough of what was going on, didn't you? Enough to have that Galen bloke skulking around when it all happened. You should've told more people. What if it had been me under that trance instead of Bruce? Or someone else? Someone powerful, who could've hurt someone?
You told me about the mermaid thing. You could've trusted me with all that, too. Friends don't lie to each other.
And Hermione? What's she got to do with any of this? If she knew as much as I do now, she would've been just as keen as I am to help you out. No one wants to see anyone get hurt, least of all either of us, coming from the war we were in and all.
I dunno who knows what now. I haven't gone and run my mouth about it all, if that's what you're getting at.
I don't think the mermaid/Siren/whatever the bloody hell all that was is too dangerous. I think the secret keeping is.