Banished from the Hero's Party, I Decided to Live a Quiet Life in the Countryside, Vol. 7 (manga)

Rit and Red's plan to lure out the Thieves Guild goes awry when Al, the half-elf boy in their care, is kidnapped by Bighawk's goons! Bighawk, the Guild's number two, has grand plans for Al, claiming he'll make the boy a "hero." But what is he really after-and how do the "False Prophet" drug and the local bully Ademi factor in?!