Andre Norton: Voodoo Planet: A duel of two cosmic magicians - a horrible death for the loser

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The Time Traders

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The Time Traders II: The Defiant Agents and Key Out of Time

Storm Over Warlock

Andre Norton: The People of the Crater

From the Sea to the Stars

Time Enough for Love: The Lives of Lazarus Long

Crosstime

Sea of Tranquility: A novel

Deadly Dreams

Warlock

The Thousand Earths

Search for the Star Stones

A Gift of Dragons