The Phantom Guesthouse(2003)

Meguru Kakuutei

A fantasy tale about a boy who enters a magical manuscript and discover "the inn of the imagination." But all's not fantasy and fun here, because there's a price to be paid for venturing into this world.

(Source: CMX)

Note: Includes the extra story 999-Banme no Hana (The 999th Flower | 999番目のハナ)