Part of me is sad that she didn't try to taste this ghost, as per Naomi's request. Then the rest of me reminds that little part that it <i>is</i> Ruth.
For some reason, Ophelia is more tangible. I have a few theories: a) she died more recently than other ghosts Ruth has encountered, b) her purpose is stronger, or c) some part of Ophelia wants to be noticed.
"You made a pendulum out of a <i>battery</i>?"
"Indeed. And it holds charge quite well, I may add."