Mystery Monday: Her Voyage, Part IV

Of course, my younger son and I went to
The town of Digby, there to see if she
They called Kris Pollard really could be who
They claimed. The woman certainly could be
My sister; she looks just as Krissy did
At age sixteen. My sister, though, is twice
That age (and then some). Too, this ageless kid,
She knows us not. I took her wife's advice
(Each generation, she has found it best
To marry her caretaker, simplify
Her complex mode of life that way): a pest
Gets fewer answers. Now and then we try
A song, a photo, but so far her mind
Connects them to much older things, we find.