Winston Breen's Puzzle Party tour.

If you aren't already participating, you should be:  not only will a correct solution to each daily puzzle win one random player an autographed copy of Eric Berlin's new book, but a correct solution to the final puzzle -- and to get it, you'll need to solve all of the previous puzzles -- will win one random player every children's and YA book in G.P. Putnam's Sons Spring 2009 lineup, as well as a few Fall 2009 advance reading copies.  So it's well worth your while.

See the official site for more info.

The daily puzzles will be appearing around the kidlitosphere until April 22nd:

April 16th: A Patchwork of Books
April 17th: Fuse #8
April 18th: Shelf Elf
April 19th: Books Together
April 20th: Bookshelves of Doom
April 21st: Chicken Spaghetti
April 22nd: Oz and Ends