I don’t know if somebody’d already pointed this out, but GUYS…
THIS WAS LUDO’S SANCTUARY IN SEASON TWO
AND THIS WAS THE VENUE OF STAR’S MEWMAN-MONSTER FRIENDSHIP PARTY
OH, MA GOSH. IT IS THE MONSTER TEMPLE, you guys. AND IT WOULD SEEM THAT THIS WAS ECLIPSA AND HUBBY’S (we’ll call him Hubby, for now) HOME AT ONE TIME (since found here was Meteora’s old room—MONSTER BASH)
And remember that Ludo was possessed by Toffee in the majority of S2. Toffee knows this place; it is very likely that Toffee picked this place as sanctuary for him and his host, Ludo, as it was a familiar dwelling to him. This very significant place. This SIGNIFICANTLY“DANGEROUS” (as emphasized by Rhombulus) & ANCIENT PLACE. It could not have been a coincidence that the temple is whereToffeeruns to during his plotting and waiting, and haveEclipsa and fambe alluded to it, also.
I mean, this’ll corroborate the theory even stronger: of Toffee being related in some way to Eclipsa. One way or another, HE IS. And this Monster Temple is correlated to them. I don’t believe that Toffee is really gone—bc of that creepy last line of his—, but now, this temple is kinda connecting the dots (at least, for me) of their [Toffee and Eclipsa’s] realation to each other.
I’m still confused about some things, but this is my first highly-plausible-and-kinda-makes-sense theory, so I’m sharing it. I know it’s kinda weak, but yeah, please don’t kill me