Lone Wolf and Cub Omnibus Vol 11

The swords of Ogami Itto and Retsudo Yagyu stand waiting for the mortal enemies' final confrontation, but Yagyu is imprisoned in Edo Castle, with conniving poisoner Abeno as his warden. Retsudo has two deadly options--take Abeno's prepared meals and be slowly poisoned or refuse and die of hunger and thirst!