User blog comment:Rjwstar/MGQ world`s various untold informations - Torotoro blog Q&A/@comment-26228098-20160115214727/@comment-2037710-20160119095425

Wait, if Ilias blasted Alice out of the sky while she had Angel Halo in hand, wouldn't it have crash landed next to her, and wouldn't Luka notice its defining appearance?

Speaking of which, how DID Alice carry Angel Halo on her person without Luka noticing until she brought it up?

@LostWind5: It just says Alice ambushed Ilias when she was coming down to give her blessings. It also only says Alice knew how to get to Heaven via the gate. However, Gargoyle Girl served as a watchguard for the gate since the Great Monster Wars, so we can assume Alice I knew about how to reach Heaven.