"Missing link". Appeared in Astounding Science Fiction February 1959
"Operation Haystack". Appeared in Astounding Science Fiction, May 1959
"The Priests of Psi". Appeared in Fantastic Science Fiction Stories, February 1960
The story focuses on Lewis Orne, an agent for a government agency which develops "lost planets." After correctly identifying a warlike civilization on the planet Hamal, he is drafted into Investigative Adjustment (I-A), which manages dangerous planets. Under the auspices of I-A, he travels to various planets in order to maintain peace throughout the galaxy. At the same time, the priests of the planet Amel, who practice "religious engineering," set about creating the first human god in their history. After resolving a number of dangerous situations, Lewis is injured and has a near-death experience. Following this, his psychic powers develop, and after passing a series of tests he becomes a god.