But the President of Sumor XI was embarrassed on his visit. He and Burl are both hunters, and they are highly congenial. But the President of Sumor XI was upset on his last flight to the lowlands. Burl got out of the atmosphere-flier alone, and for pure deep personal satisfaction he fought a mastodon-sized wolf spider with nothing but a spear. He killed the creature, of course. But the President of Sumor XI was embarrassed. He wouldn't have dared try it. He felt that, however sporting it might be, it was too risky a thing for a Planet President to do. But Saya took it for granted. * * * * * _You're missing the big thrills in science-fiction if you miss any of the_ _ACE SCIENCE FICTION NOVELS_ For instance, here's what the _New York Herald-Tribune_ (just one of the many applauding reviewers) said about Ace Book D-103: SOLAR LOTTERY by Philip K. Dick and THE BIG JUMP by Leigh Brackett "The latest Ace double-volume offers, for the first time, two new books at one low price, and both well worth reading. _Solar Lottery_, a first novel by one of the most striking young magazine writers, creates a strange and fascinating civilization for the year 2203, a culture based upon Heisenberg's idea of randomness and Von Neumann's Games-Theory.... Against this background two plots develop, one of intricately deadly and suspenseful palace politics, one of an ambitious attempt to rediscover our sun's once-glimpsed tenth planet.... As elaborately exciting as vintage Van Vogt--with an added touch of C. M. Kornbluth's social satire. "_The Big Jump_ is more conventional ... the battle of a monopolist family to hold the secret of interstellar flight makes a lively melodrama, with a virtually compelling finale of alien life on a remote star." _Ace Book D-103--35¢_ _Some recent titles in the outstanding_ ACE SCIENCE FICTION _lists are as follows_: D-139 ALIEN FROM ARCTURUS by Gordon R. Dickson THE ATOM CURTAIN by Nick Boddie Williams S-133 (25¢) ADVENTURES ON OTHER PLANETS A new anthology edited by Donald A. Wollheim D-121 THREE FACES OF TIME by Sam Merwin, Jr. THE STARS ARE OURS! by Andre Norton D-118 THE PARADOX MEN by Charles L. Harness DOME AROUND AMERICA by Jack Williamson D-113 ONE IN THREE HUNDRED by J. T. McIntosh THE TRANSPOSED MAN by Dwight V. Swain D-110 NO WORLD OF THEIR OWN by Poul Anderson THE 1,000 YEAR PLAN by Isaac Asimov D-125 THE MAN WHO UPSET THE UNIVERSE by Isaac Asimov Except as marked, any of these books may be obtained for 35¢ (plus 5¢ handling charges) directly from Ace Books, (Sales Dept.), 23 W. 47th St., New York 36, N. Y. _Order by Number_ End of the Project Gutenberg EBook of The Forgotten Planet, by Murray Leinster