The Gatekeeper: Protector of the Realms (Unabridged‪)‬

A gatekeeper must protect the portal to the other realms of the multiverse. An evil army uprises to take control of the gate and rule the rest of the realms. Zaden, the last gatekeeper, must do what he can to stop the conquest. After the Dark Lord takes control of the sixth realm, he is taken prisoner to build a secret tower. He escapes and follows encrypted messages given to him to a secret location hiding from scouts of the Dark Army. He trains with the grand gatekeeper, the master of all masters of the gatekeepers, for years. He returns to fight the Dark Lord and his army and bring down his rein.

(This story is being released in parts and will eventually be released complete as a novella.)