When Marius ascends more than half of the way, he notices a strange tiny construct sitting on the railing above the main hall sprout a two-bladed rotor and fly clumsily to the opposite wall, where it lands itself next to an open second story window. Laurelata hears some strange WHHRRRRR from what seems to be inside of the building, but does not see the source from where she is standing.


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Something stealth: (1d20+11)[12] (@farothel oh, you are not alone; this is against your first percepton check)


=> Marius and maybe Laurelata (may be also others, if they are notified)