One summer morning while Aidan and Sarah are visiting their grandfather, they discover a secret compartment in his battered wooden desk. Inside is a yellowed envelope that contains a piece of very thin, almost translucent, white paper, on which, handwritten in black ink, are a series of seemingly random lines; among them are what appear to be fragments of letters, but not enough to make sense. At the bottom of the page is a verse about Peter Peter and a reference to a real hotel in London. As it happens, the family is about to embark on a trip to Europe, so the children decide that while in London, they will try to locate the hotel.
The book is well worth being included in the series. Very glad there is the possibility of having more books, possibly more fun, and the humor and action keeps coming. Thank you, to the authors for more!
Weakest title in the series. First 4 great, this is not very good
This is one of the best books I ever read. Maybe a little confusing near the middle, but a great book nonetheless.