Anything You Can Do... is a science fiction novel by Randal Garrett published in 1963, under the pen-name Darrel T. Langart.

One shipwrecked alien against the power of an entire planet means a losing battle... until Earth builds superman!

An alien crash lands on Earth, and for ten years terrorizes the planet, hiding, periodically killing and eating people and stealing materials for some unknown purpose.

The only hope is Bart Stanton, a medically-engineered superman, designed for the sole purpose of confronting the “Nipe”. 

Anything You Can Do… was first serialized in Analog in May and June 1962.

Randall Garrett (1927-1987) was an American science fiction and fantasy author. He was a prolific contributor to Astounding and other science fiction magazines of the 1950s and 1960s. He instructed Robert Silverberg in the techniques of selling large quantities of action-adventure science fiction, and collaborated with him on two novels about Earth bringing civilization to an alien planet.