Susie's Leaning Tower of Chocolate for 2011 December 27

Rachel sent Dalton a book called The Dog Detectives: Lost in London for Christmas. The dogs have to find the 6 black ravens, and there are some riddles to solve along the way. I read the book to Maggie just now.

Susie: "I wear bark, grow leaves, and shade parks." What grows leaves?
Maggie: Water!
Susie: Um... yes...