ISBN-13: 9780552568388 / Angielski / Miękka / 2013 / 138 str.
Great-grandpa Toby is making so much noise! And if Tam can hear the clamour coming from his humming machine, the fairies will too. And soon enough, on the night of a blue moon, Great-grandpa Toby vanishes without a trace. Great-grandpa Toby is tempted to stay in Faery Land and be young for ever... Unless Tam has anything to do with it.