It's been a hard year for us with our geriatric pets. First Beta in October at age 14, now Gandalf has left us just before his 16th birthday. He developed a hard-to-diagnose but apparently fast-moving cancer. He had surgery in January, but after a short period where it looked like he was recovering he started suffering other symptoms. Ariana came back to visit him one last time and this buoyed him up for the day, but the following day he was exhausted and we all decided that his time had come.
We will miss him terribly.
You can visit Gandalf's Memorial Page to see and comment on some pictures of him.