The Grand Hotel Infinita is a place where the rooms never end and the mysteries are truly boundless. When the most cherished possessions of the guests vanish without a trace, panic spreads through the lobby. How can Anne and her clever Border collie, Scotch, find a missing pipe or a lost monocle in a hotel with an infinite number of rooms and floors? It seems like an impossible problem, but Anne and Scotch are about to discover that even a paradox can have a perfectly logical solution.