(how about a zombie there dumber than a staue)
"lets go home"

Xeno held the 3 Keys in front, and the door opened. A bright light instantly poured out, and they covered their eyes as they slowly walked through.

(We'll work this out soon. Choose quickly, becase darker days than these are closing in.)

Once they were through, Xeht asked: "So are we done closing off all the portals or what?"

"Light and Darkness are now one. There is no need to search out the Key Holes anymore."

(how about a giant spider)

(That works. You can make it any size.)

"Alright, let's get back to the ISS."

They activated a teleportation device and came went back to the ISS.

M-1 turned to them. "Don't get comfortable, I want to go and find a giant spider."

Xeht and Xeno groaned.

"The best place then would be back on Mars." said Xeno. "Let's take a shuttle and go the Base Camp. Land to close to the arachnid tunnel, and we'll wake the spiders up and they'll have an ambush waiting for us."