Billy Brown turned 65 years old last week.
Such a major birthday is typically a reason to get together with loved ones and enjoy a lavish celebration.
But while many members of Brown's immediate family did, indeed, gather for the occasion... they weren't in a very celebratory mood.
For one very obvious and sad reason:
It doesn't appear as though Amy Brown was part of the contingent.
On Sunday, 15-year old daughter Rain shared a photo of herself and sister Birdie eating ant an oceanside restaurant.
She also wrote the following message as the caption to the self-portrait below:
"Happy birthday to the amazing man that has put up with this mess (and six others) for so many years, I hope your day has been wonderful daddy!
"And I’d like to wish a late birthday to his beautiful wife and my adorable mommy."
Rain, however, did not include an image of Ami along with this post.
It makes us think Ami wasn't around to actually celebrate either her birthday or Billy's birthday with her sons and daughters.
And, tragically, we think we know why.
Ami continues to battle stage four lung cancer, as the Browns have even moved out of Alaska in order to Ami to receive the best treatment possible in the continental United States.
It's believed they were in southern California for a bit, but have now relocated to Colorado.
This is where Alaskan Bush People Season 8 has reportedly begun filming, although details on the location and on whether or not Ami will be featured remain scarce.
We can confirm, however, that an Alaskan Bush People Christmas special is on the way.
The Discovery Channel has confirmed this exciting piece of programming news.
Rain, meanwhile, has tried to keep Instagram followers abreast of the sad situation.
But it isn't easy to talk about, of course.
"She is now going though her second round of chemo, sadly I can’t say how she is doing just yet, but we are all hopeful and faithful," Rain wrote as an update on late October.
All she could really do from there was thank her fans for showing such constant support:
"Thank you all so much for your support and love in this harsh time. Stay strong my rainbows, God bless," she wrote.
We know that there aren't any words that can really help the situation right now.
But hopefully Rain and all of the Browns know they are in our thoughts.
Hang in there, Ami.