Durarara!! Gaiden!?
| Volume Title | Durarara!! Gaiden!? |
| Japanese Volume Title | デュラララ!! 外伝!? |
| Light Novel | Durarara!! Gaiden!? |
| Publisher | ASCII Media Works |
| Light Novel Label | Dengeki Bunko |
| Author | Ryohgo Narita |
| Illustrator | Suzuhito Yasuda |
| Target Readership | Male |
| Release Date | August 09, 2014 |
| Pages | 312 |
| ISBN-10 | 4048668307 |
| ISBN-13 | 978-4048668309 |
| Height (cm) | 15.00 |
| Width (cm) | 10.60 |
| Thickness (cm) | 2.20 |
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