Talk:Shinyaku Toaru Majutsu no Index Light Novel Volume 18/@comment-28352788-20170523192936/@comment-58.71.104.77-20170611135421

liquid proof railgun was an combined ability with Misaki's mental out in which. (I'm not good in science though). they use it to penetrate the wall of Windowless building. I don't know wtf if they gonna go inside that building that it may be full of magic spell and mana from Aleister Crowley. Luckily they got A.A.A to protect against the magic spell.