cracked egg under broody

[Lifetime chicken lover]

Hi!
I have my first broody mama sitting on her eggs due to hatch the 28th. Mysteriously, 2 eggs disappeared last night (she had 16 and now there are 14). No egg shells or any evidence that they even existed. But that isn't my question, just kind of weird.
One of the remaining 14 eggs has a cracked shell but the membrane is intact, when I picked it up something moved...so it's still alive. Will the mama kick it out? Should I remove it before it breaks open? Is it definitely not viable anymore? Any comments and thoughts on this are welcome. Thanks in advance! I love you all and the wonderful advice I get from BYC!!!

 

[Lifetime chicken lover]

Update:
Mama kicked the cracked egg out of the nest...poor little thing, fully developed little chick, dead.

 

[MuckyPuppy]

I'm so sorry.

 

[SaraFL]

Aww, so close. Sorry about that.

 

[mistakingdeer]

sorry about the cracked egg. I've had a broody roll eggs out of the nest. I think she can tell there bad and wont hatch. did you find out what happened to the other two disappearing eggs?

 

[djennings]

I just had a cracked egg under my silkie, took it out and put painters tape on it, candled it, still moving around in there and put it in incubator, hopefully will hatch.