Crooked House can help advanced learners become more confident with fast and natural English. The complexity of the plot makes listening more challenging because learners also need to keep track of what is happening. The language mixes everyday English with a few expressions that need attention, so it works best for learners who already have a solid base. The pace feels realistic without being constantly overwhelming, with an average speaking rate of around 97 words per minute. For learners around B2/C1, this can be a practical choice for building confidence with more complex narratives.