Molly Bolt is a jumper, one of nearly a hundred teenagers given the power to indefinitely exchange bodies with a chosen target. The “jumper” power is an infused power, gained by having sexual relations with the ace, Edward St. John “Loophole” Latham. Once infused, a jumper gains the ability to swap minds with a victim, essentially stealing their body for a time. A jumper must be able to see a subject in order to switch bodies. The jump is indefinite unless reversed by another jumper. Jumpers can even do three-way jumps to switch the minds of two non-jumpers (jumping the first person, then the second, then jumping back to their own body, putting the first person’s mind into the second person’s body).
When they jump an ace, they generally get the ace’s powers, both physical and mental. Jumper victims often spend the duration of the jump in a catatonic state due to trauma and mental strain caused by the jump itself, but some retain consciousness in the borrowed body.