Everytime he sneezes, Martin becomes temporarily forgetful. You see, it is sneezaphobia day, the first day of sneezaphobia week, which occurs once every 300 years. Martin describes it as being akin to hay fever season. Luckily, there is a simple remedy; unluckily, Martin can't remember one of the key ingredients. To be safe from his sneezing fits and accidentally identifying himself specifically to Det. Brennan, Tim recommends that Martin hide his spaceship and his Martian belongings, but Martin needs to write down where he hides it in case he sneezes and forgets. Unfortunately he writes it in a book that Tim lends to Mrs. Brown to give to Det. Brennan. Martin needs to retrieve the book and remember how to read his Martian notes before trouble occurs. But just in time, Martin remembers the last ingredient for the remedy.