Greater Than the Sum is a Star Trek: The Next Generation novel by Christopher L. Bennett, published by Pocket Books in 2008. The book is the fifth TNG novel set after Star Trek Nemesis, and is a direct sequel to the preceding novel in the series, Before Dishonor; seeing the USS Enterprise-E explore the NGC 6281 star cluster to stop the Borg-assimilated USS Rhea gaining access to quantum slipstream technology. The novel features, and marks the first appearance of, the recurring Enterprise crew-member, T'Ryssa Chen, and at its close sets the stage for the Star Trek: Destiny trilogy.