**Not since the Renick team's Tommy Carries the Hall ( and there have been good ones, too in the whole of this games series) has there been so surely successful a book as this new one. So far I know, it is first in its field -- a rattling good story about shooting marbles, plus the eternally fascinating subject of ""magic"". It is essentially a first rate yarn, as Charles-later known as Tip -- gets himself unexpectedly a job as boy assistant to a magician -- and learns some of the tricks of the trade. Second --it is a story of comparative play, as Tip acquires the marbles he yearned for, and learns to play sufficiently well to qualify for the city-wide championship. That he falls is one of the strengths the story. But in the process, there's sound how-to-improve-your-game information which small boys everywhere will devour. Tip is a very real youngster, with bad faults -- and he learns the hard way, and makes good friends in the process.