Freddy the mouse meets Ginger Fox, who is severely allergic to eggs. This means he can’t eat or even touch eggs without getting poorly. When Ginger eats one of Mrs Bramble’s cookies, his friends realise too late that they contain eggs, and Ginger goes pale, gets spots on his skin, feels sick and finds it hard to breathe. The Mouse Doctor is called, and he gives Ginger a special medicine that is injected into his leg. The Doctor reminds Ginger that it is very important that he carries some special medicine with him at all times.