- Sarah Gilbertson: [gasps] Mr. Pringle, Mr. Pringle! Lucy's covered in spots!
- Lucy Selby: [gasps] Spots?
- Sarah Gilbertson: Oh! Mr. Pringle, Mr. Pringle! So is Bill Thompson!
- Bill Thompson: Oh!
- Sarah Gilbertson: It looks like a case of black river fever to me.
- Lucy Selby: [gasps, then cries]
- Mr. Pringle: It's not black river fever, Sarah.
- Postman Pat: It's probably chicken pox. Dr. Gilbertson told me Tom and Katy Pottage have got it.