Mortensen posted the piece to his Instagram on August 13 2018 with the following description:
The shop will be open tomorrow tuesday 14. At 7 pm Danish time. Follow The link in The bio #johnkennmortensen #donkenn #stickymonsters #bigcartel #monsters #drawings #artwork #creepy #scary
Inspired by a true story, Invincible recounts the last 48 hours in the life of Marc-Antoine Bernier, a 14-year-old boy on a desperate quest for freedom.