Summary

After Danny's friends and family die in the Nasty Burger explosion he runs to the ghost zone and lives with clock work.
About 2 months later Danny has adopted Dani as his little sister. Now he has been traveling the world with her along with training her in how to use her powers and fighting minor criminals as they go along.
When the two halfa's make there way to Gotham, none of them was expecting what would happen when they cross paths with the Batman and Robin.

( cover changed, I draw it, it's horrible I know. Second time drawing them all. Might redo it and change it again)