Lester Allison
From the yellowed pages of AMAZING STORIES pulp magazine, a trilogy of stories featuring Lester Allison and June O'Neil--
SLAVE RAIDERS FROM MERCURY--Fate was against Allison in the Rite of the Floating Chop, for only death could save his life!
BATTERING RAMS OF SPACE--Lester Allison and June O'Neil match battering rams against deadly explosive gas in total space war.
EARTH STEALERS--The Earth was captive in a giant hollow globe-and escape depended on Allison's battering ram.
These novelets appeared in the June 1940, February 1941, and June 1943 issues of Amazing Stories.