She read the part about the Cloak of Invisibility and none of them said they had it and they've been using it throughout the series. Is that weird to anyone else? I just thought it was weird that no one said anything about it, knowing they had it in their possession.
shareSeems like a minor thing to bring up, but I agree. It is kinda strange that Harry himself didn’t say anything about it. He should have acted more surprised by this revelation.
That said, interrupting Hermonie’s story in that scene would have been inappropriate. Afterwards, I suppose discussing the cloak’s importance could have easily slipped Harry’s mind because he was trying to grasp everything that he just learned. I can go with that.
Harry's wasn't the only invisibility cloak in the world.
They go into more detail in the book, but there are others which could be either made from the fur of a creature which could turn invisible, or were cloaks with spells put on them. So they probably didn't think about it while Hermione was reading because they were common, or at least they weren't rare.
But then they go on to say such cloaks usually fade, or stop working over time. Harry's was pretty old, and still worked, so they later decided it must be special, and might even be Death's.