| River of Blue Fire | |
| Author: | Tad Williams |
| Cover Artist: | Michael Whelan |
| Country: | United States |
| Language: | English |
| Series: | Otherland |
| Publisher: | DAW Books / Donald A. Wollheim |
| Release Date: | July 1, 1998 |
| Media Type: | Print (hardback & paperback) |
| Pages: | 634 (Hardback) |
| Isbn: | 0-88677-777-1 |
| Isbn Note: | (Hardback) (Paperback) |
| Dewey: | 813/.54 21 |
| Congress: | PS3573.I45563 R58 1998 |
| Oclc: | 40061628 |
| Preceded By: | City of Golden Shadow |
| Followed By: | Mountain of Black Glass |
River of Blue Fire is a science fiction novel by American writer Tad Williams, the second book in his Otherland series. It was originally published in 1998, the paperback in 1999.[1]
It continues the saga begun in City of Golden Shadow and takes the characters through among others a weird Wizard of Oz simulation, a Neanderthal world and a cartoon world.