this makes my head hurt by looking at the possibility
did his mom just travel to planet rewrite life and see the possibility of that world can survive
this makes me doubt that his mother is a former human
hmm, so your plan was sneak in, place the singing rock that can make a distraction to the enemy, and destroy there admiral (well that a suicide mission)
second, maybe the singing rock was a jammer
I may be wrong but this is my theory