PrePub - Ascendance of a Bookworm

In Bezewanst's prologue chapter, where he meets with Grausam, Bindewald and Gloria, they talk about having received a letter in which Georgine heavily hinted at having discovered, how to get into the Foundation, so it could check out, that their first attempts were made, or at least planned, before the adoption, and likely frustrated by Ferdinand's presence. Though with how little time there was between that meeting and the kidnapping attempt, I can see why they might just not have had an opportunity, before the adoption.

Or they might have prioritized getting rid of Myne, believing that this would also get rid of, or at least weaken, Ferdinand and thus make it easier to make a move on the temple in the future, once Georgine was ready to invade.

It could even be, that Bindewald was going to the temple primarily to facilitate Georgine's taking of the Foundation, and kidnapping Myne was only the secondary objective and we just didn't learn of it, because they didn't take Bezewanst into their confidence. Though while I can see it being possible, I think that last option is rather unlikely. With Bindewald being interrogated with a mind-reading magic tool, chances are, Sylvester would have learned of this, had it been the case... then again, the tools aren't infallible, especially not if Trug was involved.