Aximili-Esgarrouth-Isthill is a fictional character from the sci-fi book series Animorphs.

Aximili's a young, vaguely centaur-like Andalite who becomes stranded on Earth when he is shot down by Yeerk fighters. In The Message, he befriends the group of humans known as the Animorphs, who were given the Andalite morphing technology by his brother Elfangor-Sirinial-Shamtul in his final moments. He becomes known to his human friends as Ax.

Ax is the son of Noorlin-Sirinial-Cooraf (father) and Forlay-Esgarrouth-Maheen (mother), both of whom are on the Andalite homeworld. He is the brother of the deceased Prince Elfangor, whom he greatly admires. However, he often resents his brother for his hero status on both Earth and the Andalite homeworld, which relegates Ax to being "the little brother of Elfangor." Ax becomes close friends with Tobias, with whom he shares a forest habitat. Ax and Tobias call each other "shorms", which is the rough equivalent in the Andalite language for 'best friend'. This bond is strengthened when the two discover they are related.

Throughout the series, Ax is torn between the Andalites and the humans. In _The_Alien, it is revealed that he has been keeping secrets from his human friends and allies because of Andalite law. In many of other books Ax is forced to question his loyalties -- because while he grew up as an Andalite in the Andalite culture he has found friends and a family away from home on Earth. Despite that, there are aspects of life on Earth that greatly trouble Ax -- slaughtering other animals for food (Andalites are herbivores) and genocide, for example. However, time and again, Ax ends up siding with his Earth allies. Ax becomes somewhat obsessed with human culture, particularly food, his World Almanac, and TV (he is particularly fond of commercials, which he calls "These Messages").

When he assumes his human form, which was created by combining DNA from Jake, Rachel, Cassie, and Marco, he has an (often comical) difficulty preventing himself from overindulging in novel human senses and abilities, particularly taste and speech- Andalites have no mouths. He has a strong affinity for cinnamon buns, and also enjoys chocolate, cigarette butts, all varieties of junk food, and inedible things such as paper plates. Ax once narratively expressed an occasional desire to become a human nothlit, though he is not known to have ever mentioned this to his human friends. Ax's human morph is described as androgynous and unnaturally pretty for a male. While in morph, Ax either goes by the alias "Phillip" --masquerading as Jake and Rachel's Canadian cousin (or 'Canadese', as Ax once said)-- or "No." The latter is thanks to a mixup with Marco's dad after Marco told him to only answer questions with either 'yes' or 'no'. When Marco's dad asked him his name, he replied "No."

Ax is portrayed as a consummate warrior, and places great importance duty and his Andalite rituals. He is absolutely committed to victory, perhaps even at the cost of humanity, although he also values his friends on Earth. Ax is, first and foremost, a good soldier.

Ax's sole love interest is an Andalite girl named Estrid, who is introduced in _The_Arrival. The two had a brief fling before he is stranded on Earth. However, their romance was shortlived, due to a plot Estrid was part of to infect the Yeerks with a virus that could kill their human hosts. Eventually, she returned to the Andalite homeworld. She is casually mentioned in at least two other books, but it is assumed their romance was never rekindled.

After the war, Ax returns to the Andalite homeworld and comes under the command of the a cruiser class vessel Intrepid. Unfortunately, this ship encounters a being known as The One, a Borg-like entity that "assimilates" its victims, including Ax. What this means for Ax, and his final fate, is uncertain, although many fans believe he, along with the rest of the Animorphs excluding Cassie, is dead.

In early books of the series the ones taking place from Ax's point of view are considered the most humorous; often before the actual plot begins there is a chapter or two about Ax's comical escapades. Due to the fact that in his Andalite form he has no mouth, he is usually playing with words and sounds, which he enjoys almost as much as he enjoys as the sensation of taste. Later on in the series there appears to be no room for his antics and he takes on more of a serious role.

Ax's Morphs

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Djabala, Kafit Bird, Tiger shark, Human (DNA mix of Jake/Rachel/Cassie/Marco), Lobster, Ant, Northern Harrier, Cockroach, Human (Jake), Mouse, Flea, Rattlesnake, Termite, Great Horned Owl, Skunk, Wolf Spider, Bat, Spider Monkey (can't use), Jaguar (can't use), Racehorse, Hammerhead Shark, Mole, Mosquito, Leeran, Dolphin, Tyrannosaurus Rex (can't use), Human (random male controller), African Elephant, Seal, Polar Bear (Nanook), Giant Squid, Chimpanzee, Cow, Bull, Mountain Goat, Hork-Bajir, Squirrel, Cockatiel, Orca, Cheetah, Human (random male), Honeybee, Taxxon, Human (male Fighter Pilot), Human (male Navy Lieutenant), Human (Admiral Carrington), Human (male soldier), Beaver, Mallard, Raccoon.

Animorphs characters | Fictional extraterrestrials