So yesterday me and my son was in the bathroom brushing our teeth, my niece and nephew was on the…

So yesterday me and my son was in the bathroom brushing our teeth, my niece and nephew was on the couch in the den and my sis went out to the car. All of a sudden the smoke detector in the den started going off loud Like 3 or 4 loud beeps. Like it would if there was smoke or something. I thought someone was messing with it though so I step out of the bathroom like what's going on... Then it goes off again loud 3 or 4 times again and goes off. I ask my nephew where did it come from... He's like from that wall right there and pointed at it... My sis dads ashes are right next to it on our fireplace mantle.... I haven't heard that alarm go off since yesterday. Which was the first day I've ever heard it go off on it's on... The batteries aren't low neither they was changed not too long ago... I believe it's her dad letting us know he's here. And so does my mom and sis. Just like he showed up in several pics I took of my sis and brothers at the gravesite as a purple glow when we buried some of his ashes at his dads feet. It doesn't creep me out cause I love him and know he's holy.