Treasure Hunt Glitterwings Academy Series, Book 10.

It is the beginning of the summer term, and there is a big surprise for the third years - a very special treasure hunt! But even though the rest of the third years are very excited, Twink cannot find it in her heart to enjoy it. Twink's grandmother is very ill. She is in 'the Doldrums' which is an unshakeable sadness and nobody seems able to find the right 'shock of joy' that will bring her back to good health. Will Twink be able to think of some...