Forum:Gachi Gachi Gantetsu and Plaguespreader Zombie

I have searched the forums using several different search strings and have still not found a thread covering this issue, so I am starting it here.

My question is this: If I use the effect of Plaguespreader zombie to bring it back from the grave, then use it as overlay material for Gachi Gachi Gantetsu (or any rank 2 exceed summon monster), then send it to the grave for an effect (gachi Gachi's effect, the effect of another card, etc...), will Plaguespreader Zombie be sent to the graveyard, or will it be removed from play?

~Macromaster (would sign this post properly, but I am not currently logged in to the site on this computer)