please add "Heavy Old Tome" to looter his id is: 23986
you can add items to loot by yourself
edit with notepad++
BBot/Data/BBot.Items.txt
and add
23986,1,1000,0,0,Heavy Old Tome
somewhere at the bottom
Why you want Heavy Old Tome? Is that any use to anyone?
its item to quest, but you can also sell it to npc for 500gp