Impulse is the third novel in the Jumper series by Steven Gould and the fourth in the Jumper universe. The first two novels (Jumper and Reflex) tell a connecting story which is continued in Impulse. Another sequel to Impulse, called Exo, was published on 9 September 2014.
The protagonists of the previous novels, David (Davy) Rice and his wife Millicent (Millie) Harrison-Rice, now have a teenage daughter named Cent. They have relocated to an opulent lodge-style home in the north of Canada, bought from a billionaire who lost his wealth in the dot com crash. Here they live in isolation, hiding from the people who took her father captive and tortured him to gain control over his ability to teleport, and from the government agencies who want to use his talent. She decides that home schooling is stultifying and she wants a normal life with friends. When she triggers an avalanche while snowboarding without permission, she learns that she, like her parents, has the ability to jump, after she suddenly finds herself in her own bedroom. Her family relocates to a small town so that she can meet friends, but when they do, all three of them get wrapped up in a criminal conspiracy that grows larger as they investigate it.
Exo was released on 9 September 2014. It continues the story 18 months after the events of Impulse. Exo mainly follows Cent as she continues to test the limits of her abilities.
It seems that the ability to teleport or jump can be learned. David was the first one and just did it, but Millie and Cent did it under stress after being jumped lots of times. In the different sequels of the series the main characters discover different principles to their capabilities of jumping. In Jumper, David realizes that he is changing momentum when he jumps, both because he can jump off of a cliff and, after picking up great speed, he can jump to a perfect standstill. He also realizes that jumping is opening a hole between two different places. In Reflex, he learns to jump back and forth between two places that it effectively keeps this hole open. In Impulse, Cent learns to jump and add momentum/velocity as she arrives, resulting in the ability to throw herself into the air.