《海底两万里》是凡尔纳的著名三部曲的第二部，描写的是法国博物学家阿龙纳斯教授应邀登上一艘驱逐舰，参与追捕当时盛传的海上"怪物"，不幸却被那"怪物"俘获。而所谓的"怪物"竟然是当时无人知晓的潜水艇。该潜水艇的艇长是绰号"尼摩"的一位失踪多年的人。尼摩邀请阿龙纳斯教授一行三人作海底旅行。20,000 Leagues under the Sea is the 2nd one of Jules Verne's three-piece works. It depicts the French naturalist Prof. Aaron Jonas was invited to board a destroyer and participate in the hunting of a marine "monster". However, the professor was captured by the "monster", which was actually a submarine unknown by the world. The captain of the submarine, Nima, had disappeared for years. Nima invited Prof. Aaron Jonas and two of his friends to make the undersea travel.