The Ballarag's Imagination Rush

The Ballarag's Imagination Rush is a horror novel about a creature called the Ballarag which terrorizes 4 people of a small town it proclaims "special ones" as they are aware of its existence and can solidify their imagination to an extent. The Ballarag releases all sorts of horrid tricks to get the "special ones" to lead it to a gate only they can see, an entry into our world so everyone can see and be susceptible to its antics.