When Worlds Collide is a 2-book series with 2 released primary works first released in 1932 with contributions by Philip/Balmer Wylie, Edwin Balmer, and Philip Wylie.
#1 of 2 in When Worlds Collide
1932 • 27 Readers • 150 pages • 2.8
#2 of 2 in When Worlds Collide
1933 • 6 Readers • 192 pages • 2.7