At this point, I'm the author of around eighty books, including such series as Race Against Time, The Three Investigators, Young Indiana Jones, and Tom Clancy’s Net Force.
I've also worked with Stan Lee on Riftworld
, a science fiction comedy-adventure set in the comics business, and I've written five novels based on the film Stargate
. My Star Trek
novel Chains of Command
(cowritten with E. L. Flood) spent several weeks on the New York Times bestseller list.