One By One (TUS)

One By One is the third book in the Adventures of the Labradors: The Ultimate Sacrifice series. It stars Sparks, Mookey, Midnight and the mysterious Choco.

Plot
In the prologue, Zaka comes to Choco and tells him that she is now dead and it's up to Hamelyon to lead the Dobermans. She knows that she let Choco and the other two heroes escape, and doesn't believe he will be a good leader. She lies to him that Sparks, Mookey, and Midnight don't trust Choco and believe he makes the team fail when it does. Choco at first doesn't believe it, but Zaka makes a fake illusion showing Sparks and Mookey saying how much of a failure Choco is. Choco wakes up and runs away from the camp.

The next morning Sparks can't find Choco. He tells Mookey about it who says he hadn't seen him either. Midnight shows them pawprints that lead all the way to the Doberman Caverns. They believe that Choco was kidnapped and then make their way there.

On the way Choco sees them and attacks Sparks, shouting: "I am not a failure!". Sparks is knocked out and Mookey fights Choco, leading to Mookey's severe injury in his shoulder. Choco escapes and runs away to Hell's Cave.

In Hell's Cave, Hamelyon tries to capture Choco, but Choco defeats him and tells him that he is the new leader of the Dobermans, as instructed by Zaka. He then tells them how to defeat the three remaining puppies, and the Doberman army prepare.

When Sparks, Mookey, and Midnight decide to see if Choco was in Hell's Cave, they are ambushed by Choco and Dobermans again. Choco concludes his plan and destroys Hell's Cave, which was his plan all along. He hadn't trusted Zaka in the first place. The cave collapses but Hamelyon survives, and then begins his quest to hunt them down (like he said in Midnight's Gift).

After a few days of resting the puppies think that the adventure was over. However, that day Hamelyon returns and captures Midnight. The three heroes race to her rescue, where Hamelyon lies to Mookey that he had already killed Midnight. Choco finds his friend's girlfriend and tells Mookey. By hearing this Mookey attacks Hamelyon, but the Doberman injures Mookey's shoulder even more. Sparks attacks and defeats Hamelyon, who retreats.

The day after, at night, Sparks can't sleep because he believes Hamelyon is prepared to kill them while they sleep. He does, and with an army of Dobermans who survived Hell's Cave's destruction. The Dobermans destroy all of the four puppies's supplies and their camp, so the heroes run away and rest in a tree.

The next morning Choco has a plan. He "captures" Sparks and takes him to Hamelyon. He lies to the Doberman that he now wanted to be part of them again. Hamelyon agrees, but that he will lead. Sparks is now their prisoner and the Dobermans, Choco, and Sparks head off to find Mookey and Midnight.

When they do, Sparks and Choco attack Hamelyon, but he is not defeated and he kills Choco. Mookey and Midnight then throw Hamelyon into a river after knocking him unconscious. The Dobermans retreat.

The day after, the three puppies notice that Choco's body is gone. Then Mookey falls off a tree when Choco wakes up and makes them jump, ending the book with a happy one.