Tumor Familiar

[Manifest]

First time posting anything, so I might be posting in the wrong place. Forgive me if I am.

Anyway, my question is this; when an alchemist is fused with his tumor familiar, how do spells/spell-like abilities affect them? to be more specific, if the two are fused and the alchemist drinks his invisibility extract, do they both turn invisible? Or is the alchemist invisible while the familiar appears to hang in the air?

[VRMH]

The food in his stomach turns invisible too, so yes: the Tumor disappears along with its master.

[Manifest]

Alright, what about if the familiar casts invisibility on itself? Does the alchemist also turn invisible? For example, the Imp has an At-Will Invisibility power. Does that also turn the alchemist invisible? 0.o