Adventure Time #21
| Series | Adventure Time |
| Number | #21 |
| Publisher | Kaboom |
| Date | 2013-10 |
| Type | Comic Book |
| Artist | Shelli Paroline, Braden Lamb, Zack Giallonga |
| Creator | Pendleton Ward |
| Writer | Ryan North, Zack Giallonga |
| Series | Adventure Time |
| Number | #21 |
| Publisher | Kaboom |
| Date | 2013-10 |
| Type | Comic Book |
| Artist | Shelli Paroline, Braden Lamb, Zack Giallonga |
| Creator | Pendleton Ward |
| Writer | Ryan North, Zack Giallonga |