.. Reading the floating book

It is ASCII code. You should find the ASCII code table (Talk to the sys admin at Nuwaka about her arts. She will print you a paper that has the ASCII codes) .

So, every number is a letter (65 = A, 66 = B, ...)

The floating book says: "112 108 097 099 101 032 121 111 117 114 032 111 102 102 101 114 032 111 110 032 116 103 101 032 097 108 116 097 114".

"place your offer on the altar"