CLAMP no Kiseki (CLAMPノキセキ, CLAMP's track and/or CLAMP's miracle) is a twelve volume series of anime books celebrating the 15th anniversary of Clamp in 2004. It is published in America by Tokyopop and in Spain by Norma Editorial. Each volume is a full-color, 32-page book that contains summaries of featured series, interviews with Clamp and friends of Clamp, artwork, and exclusive new short comics. In addition, each issue comes with three special chess pieces featuring characters from Clamp's various series.
All twelve volumes have been released in Japan, Spain, Germany, and the United States.
Spanish publisher Norma Editorial sold the magazine holder, chess board, and poster as a separate special edition volume. After all volumes were released, a bundle deal was sold to the public for 49,00 Euros. It included all volumes with their respective chess pieces as well as the special edition items. Like in Japan, the Spinel Sun and Kero-chan chess pieces were available to anyone who sent in 12 coupons (1 for each volume) to the publisher. Quantities were limited.
In 2006, French publisher Pika Edition had a preview sale of 50 Kero-chan and Spinel Sun Storage Boxes that only newsletter subscribers could purchase for 40 Euros. It was then announced that a limited quantity of 100 Storage Boxes would be made available to the rest of the public via Pika's website.