How to escape the missing brother book 1 mall (no its not the end back then we just had 10 slots)

Mall Recreation was made in November 12th of 2024. Being the proximity of City. After you follow the mysterious guy to the mall, hes nowhere to be seen, and it was only a trap to activate a security robot from the mall with a laser gun. So now you have to open this secret area from the mall. Once you and zizzy do, theres a note saying: “Dear (yourname), i have been infected because i wanted to volunteer, from max)” but max is a familiar name to you, turns out, hes your brother, and that same guy from that mysterious one, was the one that was crazy on default by the infection. You and Zizzy go with pony to the safe place and get some rest