Ryan Parrott 
Saban’s Go Go Power Rangers Vol. 5 [PDF ebook] 

THE PAST FIGHTS BACK! With the Green Power Coin finally in her possession, Rita Repulsa must go into the darkest corners of her past to unlock its power. Meanwhile, the Power Rangers work to discover what exactly Rita will do next, but face an unlikely foe who has his origins in Zordon’s past. Written by Ryan Parrott (Star Trek: Manifest Destiny) and illustrated by Eleonora Carlini (Batgirl), discover the secret history of the Power Rangers revealed for the first time! Collects issues #17-20.