Deadly Friend by Keith Ferrario

This is one friendship that will never die.
Little Georgie was all by himself for such a long time, and he didn’t have a soul to play with. After all, it’s hard to make friends when you’re dead. This minor inconvenience, however, didn’t stop him from invading the realm of the living—or from looking for playmates.

One day Georgie met Bobby, and Bobby didn’t mind that Georgie was a little different. Some call Georgie “imaginary”, but to Bobby, Georgie is just as real as anyone—his brother, mother, you, me.

Happy at last, Georgie would do anything not to lose Bobby—and anyone who tried to take his new friend away would have hell to pay.

Then some bullies killed Bobby. Poor little Georgie, alone again, sad, and angry, more deadly than any living creature. He’s found new games to play—games filled with blood and terror. Pray he doesn’t want to play with you.