|“||We're the root of the trouble because we failed to find the diving helmet. If we'd retrieved it while storm scavenging, the sheep would have dragged it to the arboretum and we would have been safe!||”|
— Ferdinand, The End
It is unknown how Ferdinand came to The Island nor why they chose to stay.Violet, Klaus and Sunny Baudelaire wash ashore, Ferdinand finds a brass cannon, but Ishmael is afraid it may hurt someone, so they let the sheep take it to the arboretum.
Ferdinard is among the crowd of islanders who go storm-scavenging the day that Count Olaf and Kit Snicket wash up ashore, with Kit on a raft of books. The colonists leave to go fetch Ishmael to decide what to do, leaving Olaf under the watch of Friday Caliban and the Baudelaires. Upon returning, they spot the Incredibly Deadly Viper; Friday claims it is friendly, and Ferdinand questions who told her that. She avoids the question, and Ishmael suggests they leave the snake on the coastal shelf. They later remain with the crowd of islanders, who are convinced by Ishmael to also abandon Olaf, Kit and the Baudelaires on the coastal shelf.
When the island has a mutiny over breakfast, Byam is seen twirling his mustache at Ferdinand. Considering that Byam seems to be for the mutiny, this implies that Ferdinand was against it.
Ishmael shoots Olaf with a harpoon gun, which causes the Medusoid Mycelium to be released, poisoning the islanders. As the other colonists argue who is at fault for this, Ferdinand announces that everyone is responsible, as they failed to find the diving helmet containing the mushrooms and send it to the arboretum.
Ishmael suggests the islanders drink cordial to try and dilute the poison, and the fermented cordial drugs them into compliance. He convinces them that the Baudelaires are the root of the trouble, and then gathers them on the outrigger and has them sail off towards Lousy Lane for a cure, though they will not make it in time to save their lives.
It is unknown if they met their fate by being poisoned by the Medusoid Mycelium. It is noted that the Incredibly Deadly Viper followed the boat with an apple, and as the Baudelaires did not know this, it is possible some islanders survived to report this to Lemony Snicket. Friday knew the snake to be friendly, and thus may have taken the apple from it; however, it is unknown if she would have been able to convince Jonah or the drugged islanders to eat it.
- Ferdinand likely takes their name from a character from William Shakespeare's The Tempest.
- The play concerns a group of people stranded on a deserted island, much like Ferdinand and the other colonists of The Island.
- In The Tempest, Ferdinand is the Prince of Naples, and ends up shipwrecked on Prospero's island, not knowing that Prospero is the exiled Duke of Naples and that the rest of his crew are still alive and on the island. Ferdinand is made to be a servant, and falls in love with Miranda, Prospero's daughter. The play ends with the two getting engaged and Prospero and Miranda being welcomed back to Naples.
- Alonso, Ariel and Miranda Caliban also derive their names from the play. (In Miranda's case, also her surname.) Alonso also mentions a man named Gonzalo in his past, and Count Olaf also uses Stephano as a name for a disguise.
- While they make no physical appearance in the Netflix Adaptation of The End, they could still potentially be one of the unnamed islanders.