there's another walkthrough.. first of all click the ant's cake in front of you(it will leave the crumb). and kill the soldier ant. arm the head and spear. now go to little monster. when it put out its tongue give the crumb of cake to it. then you'll be passed. now you will meet the queen. pull out the sponge near by tailrace. and click the fire bug until sponge absorb the poison. after sponge absorb the poison, click the sponge and throw it to queen's mouth.
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 "The Several Journeys of Reemus"){kind=icon}