Remember 10 with Explorer Ben

" ... an intrepid but forgetful explorer ... sets off on a trip, and along the way keeps forgetting things. The reader can help him try out different memorization tricks along the way, as each time, one more item is lost (beginning with 10 items, and losing 1, then 2, then 3, each time, and so on)--making the game more of a challenge at every turn of the page"--OCLC.