Laser Moose and Rabbit Boy: As the Deer Flies by Doug Savage

This is the fourth in this middle-grade graphic-novel series; it follows the original Laser Moose and Rabbit Boy, a book I haven't been able to find, and Time Trout. And, yes, the series is about a moose who shoots lasers from his eyes and his friend/sidekick, a slightly more reasonable and grounded rabbit without notable fantastic powers.

Well, so far. We've also got cyborg porcupines, time-traveling fish, and a racoon doctor in this series, so it's not impossible that Rabbit Boy will develop his latent mutant powers at some point.

As the Deer Flies continues in the same goofy-but-reasonable tone that creator Doug Savage has established in the earlier books. Strange things happen in the Laser Moose books, but Savage presents it all with a matter-of-fact tone; he's got a crisper, more understated kind of humor than, for example, someone like Dav Pilkey. [1]

This time out, LM and RB are out in the woods, going to visit the Old Oak, which apparently RB has never seen before. It is old and huge and impressive, and it will figure in the amazing action sequence at the end of the book. But, more immediately, when they head over to a nearby marsh to find some water lilies for lunch, they see their friend Frank the deer leap off a cliff.

Frank is seriously injured hitting rocks on the way down, but LM manages to laser-cut a bunch of branches so Frank survives the big bump at the bottom. LM and RB take an unconscious Frank to see Doc (the aforementioned racoon), where they insist Frank's injuries are not their fault this time.

Frank has a lot of broken bones, which Doc can handle. But he's also screeching instead of talking, and acting like a bird, so the three assume he bumped his head in the fall. The doc is going to try to do something about Frank's brain, while LM and RB go off to investigate the site of the fall - LM is sure that some villain pushed Frank off the cliff. (Because why would he just jump?)

There's no sign of a struggle at the top of the cliff, though - just clear prints showing Frank leaping off. 

Luckily, some new characters show up to explain: Gus the wolf and a talking eagle. It turns out that Gus is a tinkerer, and wanted to be able to talk to birds. (Birds and animals both are sapient in this world, but their languages are mutually unintelligible.)  So Gus tried to make a machine to translate from animal to bird, and got it almost working.

Stuck, he went to the other tinkering expert in the forest: Cyborgupine. (Who, yes, is an evil villain.) Cyborgupine was really helpful for a while, and the two got the machine working...as an upgraded mind-transfer device, which Cyborgupine used, in his sudden but inevitable betrayal, to swap the brains of Frank and an eagle.

Hence Frank shrieking like a bird and thinking he can fly. Hence an eagle who can talk and saying he's Frank.

LM and RB of course decide they need to confront Cyborgupine, get the mind-transfer device, and put the eagle and Frank back in their correct bodies. It does not go quite that smoothly, with one more mind-transfer and an extended chase sequence near the end of the book, with a lot of laser eye-beams lancing about and cutting things indiscriminately. In the end, of course, good prevails and everyone is put back into their correct bodies.

As usual, Savage ends the book with a short additional educational section - this time about tree rings.

These books are aimed at middle-schoolers. If you can't get past that, I suppose that's unfortunate. Savage has an accessible cartoony style and a dryer wit than usually seen in books for tweens, plus the expected wacky hijinks the form requires. Frankly, I don't see how anyone can miss a series called Laser Moose and Rabbit Boy once they know it exists, but it takes all kinds to make a world, I suppose.

[1] Example: when Rabbit Boy asks Laser Moose if he meditates, the Moose says "Meditate? I don't meditate. I just come here to sit quietly and focus my mind until I feel a peaceful sense of inner calm."