Richard Longhurst and the Box that Ate Time

[Rhubarb_Features]

I am in Japan, and have no idea what to do now. I have the swimming badge, the poirot moustache bit of coal thing, the polish, the dead potto, the note, the poo, the umbrella, the sieve and the bowl of food.

Can anyone help please? The walkthru i found was totally unhelpful.