Book picks similar to
Ambassador by William Alexander


science-fiction
middle-grade
sci-fi
aliens

The Goblin's Puzzle: The Adventures of a Boy With No Name and Two Girls Called Alice


Andrew S. Chilton - 2016
    All four are tangled up in a sinister plot to take over the kingdom, and together they must face kind monsters, a cruel magician, and dozens of deathly boring palace bureaucrats. They’re a ragtag bunch, but with strength, courage, and plenty of deductive reasoning, they just might outwit the villains and crack the goblin’s puzzle.

The Song from Somewhere Else


A.F. Harrold - 2016
    No one likes Nick. He's big, he's weird and he smells – or so everyone in Frank's class thinks.And yet, there's something nice about Nick's house. There's strange music playing there, and it feels light and good and makes Frank feel happy for the first time in forever.But there's more to Nick, and to his house, than meets the eye, and soon Frank realises she isn't the only one keeping secrets. Or the only one who needs help …

The Serpent's Secret


Sayantani DasGupta - 2018
    until her parents mysteriously vanish and a drooling rakkhosh demon slams through her kitchen, determined to eat her alive. Turns out there might be some truth to her parents' fantastical stories-like how Kiranmala is a real Indian princess and how she comes from a secret place not of this world.To complicate matters, two crush-worthy princes ring her doorbell, insisting they've come to rescue her. Suddenly, Kiran is swept into another dimension full of magic, winged horses, moving maps, and annoying, talking birds. There she must solve riddles and battle demons all while avoiding the Serpent King of the underworld and the Rakkhoshi Queen in order to find her parents and basically save New Jersey, her entire world, and everything beyond it...

The White Mountains


John Christopher - 1967
    Now people unquestioningly accept the Tripods' power. They have no control over their thoughts or their lives.But for a brief time in each person's life—in childhood—he is not a slave. For Will, his time of freedom is about to end—unless he can escape to the White Mountains, where the possibility of freedom still exists.