Project Number Nine

in another world with magic, and sorcery, a mad scientist starts to experiment, and chooses his own son to test it on.
it's almost a success, but a few years later,
the man goes missing.
now gone, his Ten test subjects run free, being called a number all their lives, they keep the name, and scatter throw out the world.
and on all their minds?
hoping no one would find out about their past, and abilities.
an original tale