3. During the act of "pon farr", Selar's mate, Voltak, dies suddenly. What causes his death?
From Quiz Star Trek: New Frontier - The "pilot episodes"
Answer:
Heart attack
In the year 2371, Dr Selar, while assigned to the starship 'Enterprise', takes a leave of absence on her home planet of Vulcan in order to complete the "pon farr" ritual with her mate, Voltak. While engaged in the act of mating, during which they are also joined telepathically, Voltak suffers a massive heart attack and dies before Selar can do anything, which not only causes the death of his body, but also the loss of his "katra" (his living spirit). Selar returns to her duties and, two years after this event, is transferred to the starship 'Excalibur' as Chief Medical Officer. However, the failure to complete "pon farr" leads to her increasingly losing emotional control as time goes on.
Dr Selar is one of the three minor characters from "Star Trek: The Next Generation" to become a main character in "Star Trek: New Frontier", alongside Commander Elizabeth Shelby and Lieutenant Robin Lefler. Originally appearing in the second season episode "The Schizoid Man", Selar was played by Suzie Plakson, who went on to appear twice as Worf's half-human mate K'Ehleyr, as "Miss Q" in "Star Trek: Voyager", and the Andorian Tarah in "Star Trek: Enterprise". Although the character of Selar only appeared in a single episode, she was referred to in several other episodes during the run of "Star Trek: The Next Generation".