Trying to get my son abducted for peace on earth

So, per the plot I had a son exclusively to sacrifice to the aliens bc I want to raise an alien child and ensure peace amongst the stars. I’ve forced him into mastering the skill of logic and have him stargaze/search the galaxy on a nightly basis as is his duty as human (ish) sacrifice. I’ve also had him start a garden on our home lot because apparently that’s alluring to our fine alien counterparts? Not to mention he has on his person and has identified three separate space rocks for increased chance at the alien overlords descending upon us to hopefully impregnate my sweet boy.

The problem I’m having is- they’ve yet to come.

• I have him stargaze/search the stars around 10/11 pm for about an hour or two every night, then stand outside and do nothing until about 4 a.m.

• He has a gardening skill and garden on our home lot.

• He possesses on his person three identified space rocks at all times.

Potential issues???

• He’s a wizard

• He didn’t personally collect the space rocks, our dog Klomper did.

-Maybe I need MORE space rocks?

• The garden isn’t very big/diverse.

• He only waits for our divine visitors on our home lot.

• Maybe he’s ugly?

I really don’t want to use cheats, but I’ve read so many different sources and have tried to incorporate a bit of everything. Maybe I’m just impatient… but any ideas/suggestions would be GREATLY appreciated. Thanks!