I'm hashing out a collective of NPC Rock Gnomes who live in a small stone castle shaped like a Huge person, about 15 x 15 x 22 feet, which is the maximum size for a creature of Huge size. This collective of gnomes will have two basic talents that they excel at one of which will be:
- They can animate their castle and enlarge it both to travel short distances and as a defensive measure against creatures of ill intent.
Animate Object states (PHB 213):
You can’t animate any object larger than Huge.
Enlarge/Reduce states (PHB 237):
The target’s size doubles in all dimensions, and its weight is multiplied by eight. This growth increases its size by one category—from Medium to Large, for example.
My question is this: If the castle is currently a Huge object and it is animated as a huge object and then it is enlarged and becomes a Gargantuan object, does the Animate Object spell continue to function?
I know I can bend the rules for NPCs and I'm o.k. doing that if I need to, but I'd like to know RAW on this.