Missing Spells?

[Michael Thayne]

Originally Posted by sir_pudding

Some monster have Warp for one.

Also, I think there's an assumption that if the GM wants a gate in a dungeon, they can just make up the details of how it works—no need to adhere to GURPS Magic. In fact,

Spoiler:  

Against the Rat-men does prominently feature a portal in the final room, which could in theory be closed with Control Gate or noticed ahead of time with Seek Gate.