In which Star Trek novel did Kirk step on a venomous creature? The creature may be known as a "Judas Boot"?
I don't know about stepping on a venomous creature, but in the novel First Frontier (book 75) Cpt. Kirk has been stung by a "hairy thrill killer scorpion (I believe it was called)." There was no cure but, Dr. McCoy can keep treating the symptoms until the poison finally wears off.