Well….
Most demons have far worse experiences than Tom, he is sort of an exception. Coming out of the Abyss often means scrubbing floors, building fortresses for your master, slave labor basically, at least for the little guys.
And the big guys? They have to much ego to even pretend to submit. But there certainly could be some that do that…
Arch-Demons and above can certainly get out whenever they want. Although, no (or very few) humans know this–as of book 1. In fact they assume that the more powerful the demon, the more power it takes them to manifest on the plane.
Tom has proven to be able to hijack other demon’s summons, that’s highly unusual, it has been done before but is extremely rare.
however, there is a way to get out of the Abyss that’s far better for 3’s and 4’s than having a master (but it is not that common)…and that will be explored in Book 2…but people have mentioned it here in the threads…
As to two masters, there is contradictory information on that, some sources say yes, some say no…
Yes, but I don’t just smoke my pipe…I’m very social…and there might be some small cause for some demons to dislike me…