Donald A. Wollheim 
One Against the Moon 

One Against the Moon is a science-fiction novel written by Donald A. Wollheim and first published in 1956. In One Against the Moon Donald A. Wollheim spins a tale about a stowaway, on the first rocket to the moon! Trapped in an underground cavern of the moon, Robin Carew faced possible death-alone! Starvation was postponed only briefly. He had the two rabbits and a monkey that had accompanied him in the untested atomic rocket not designed for human passengers. Rescue was unlikely. No one had discovered him hidden within the rocket before the blast-off.