What are the consequences of letting Karlach return to Avernus in Baldur's Gate 3?

Letting Karlach return to Avernus in Baldur's Gate 3 is a significant story choice that has lasting consequences for both her character and your party. Karlach is a tiefling barbarian with a tragic backstory tied to the infernal plane of Avernus, where she was forced to serve as a soldier in the Blood War. Her personal quest revolves around her desire to escape her past and find freedom, but the infernal engine in her chest, which powers her strength, also ties her to Avernus. If you choose to let her return to Avernus, it is a decision that will shape her fate and your relationship with her.

To achieve this outcome, you must first recruit Karlach into your party. She can be found in the wilderness near the Risen Road, where she is being hunted by paladins of Tyr. You can choose to help her by defeating the paladins or siding with them, but to recruit her, you must side with her. Once she joins your party, her personal quest, "The Hellion's Heart," will begin. This quest involves finding a way to stabilize or remove the infernal engine in her chest, which is slowly killing her.

As you progress through the game, you will encounter opportunities to learn more about Karlach's condition. One key moment occurs when you reach the city of Baldur's Gate and meet a character named Dammon, a tiefling blacksmith who has knowledge of infernal engines. Dammon can help stabilize Karlach's engine temporarily, but he will also warn you that the only permanent solution is to return to Avernus, where the engine can be properly repaired or removed. This sets up the critical decision point in her quest.

When the time comes to decide Karlach's fate, you will have several options. You can choose to let her return to Avernus, either alone or with you accompanying her. If you let her go alone, she will express her determination to survive and find a way to fix her engine, but she will also acknowledge the risks of returning to a place filled with danger and enemies. If you choose to go with her, it will be a more hopeful ending, as you pledge to support her in her journey. However, this also means leaving the Material Plane behind, which has implications for your character and the rest of your party.

The consequences of letting Karlach return to Avernus are significant. If she goes alone, she faces an uncertain future, and you may never see her again. This can be a bittersweet ending, as it reflects her bravery and determination but also the sacrifices she must make. If you go with her, it shows a deep commitment to her well-being and strengthens your bond, but it also means leaving behind the world you have been fighting to save. This choice can affect your relationships with other companions, as they may have mixed feelings about your decision to leave.

One important tip is to consider Karlach's approval of your choices throughout the game. Her approval is influenced by your actions and dialogue, particularly those that align with her values of freedom, loyalty, and justice. If you consistently make choices that she approves of, she will be more likely to trust you and value your input when it comes to her fate. Conversely, if your relationship is strained, she may be more inclined to make decisions independently.

A common mistake to avoid is rushing through Karlach's quest without fully exploring the options. Take the time to speak with her regularly and learn about her backstory and motivations. This will give you a better understanding of her character and help you make a more informed decision when the time comes. Additionally, make sure to complete any related quests or tasks that could provide additional context or solutions for her infernal engine.

In terms of advanced techniques, you can optimize your party composition to support Karlach in combat, as her barbarian abilities make her a powerful frontline fighter. Pairing her with characters who can provide healing, buffs, or crowd control will enhance her effectiveness in battle. Additionally, consider the role-playing implications of your choices. If your character has a strong moral compass or a personal connection to Karlach, this can influence your decision-making process and add depth to the story.

From a D&D rules perspective, Karlach's infernal engine is a unique mechanic that ties into the lore of the Blood War and the infernal planes. In the tabletop game, infernal engines are rare and dangerous devices, often used to power war machines or enhance soldiers. The rules for handling such devices would typically involve high-level magic or divine intervention, which aligns with the challenges Karlach faces in Baldur's Gate 3.

In summary, letting Karlach return to Avernus is a complex and emotionally charged decision that requires careful consideration of her character, your relationship with her, and the broader implications for your party. By engaging with her quest, building a strong bond, and exploring all available options, you can make a choice that feels meaningful and true to your playthrough. Whether she goes alone or with you, her journey to Avernus is a testament to her resilience and the strength of your connection.