While trying to solve the problems of hyperspace, Marcus finds help in the theories of a Dr. Gregory Lanzig and decides to track him down. Lanzig proves hard to find, but Travis and Callie find his assistant Dr. Vienna Xeylon. Xeylon offers a device called a horizon generator which once installed in the Tulip will help create a stable warp bubble. Orchard agents come for Xeylon and Tristan Catchpole returns and chases the Tulip down. Their only chance for escape is to try Xeylon's device and enter hyperspace.