At first glance, this looks like a viable RP for my character, "Farseeker" Xukhezur Kavinath, with his extended description and referenced information available in the link on my signature.

The Forgotten Realms D&D setting from which he was sprung... sets a precedent for the proven ability of his people (the Imaskari) to build very powerful portal terminals (among other things) that are capable of opening two-way portals to locations on other planes and planets, providing the plot device needed to explain this character's presence in your world.

Let me know what you think.