Lemony Snicket is most famous for the "A Series of Unfortunate Events" series, which features a hospital in one of the books ("The Hostile Hospital").
Here's what happens at the end of "The Hostile Hospital":
* The Baudelaire orphans are trapped in the hospital: After a daring escape attempt from Count Olaf, the Baudelaire children find themselves trapped in the "Hostile Hospital" with Olaf masquerading as a doctor.
* They uncover Olaf's plan: The Baudelaires discover Olaf is attempting to steal their fortune by faking a medical emergency and claiming they need a blood transfusion.
* They escape and expose Olaf: Using their intelligence and knowledge, they manage to escape the hospital and expose Olaf's scheme to the authorities.
* The orphans are left on their own: Despite their escape, the Baudelaire orphans are once again left to fend for themselves, with no guarantee of safety.
The story ends on a cliffhanger: As the children leave the hospital, they are confronted by a mysterious figure who claims to be a friend, but whose true intentions are unclear. This sets the stage for the next book in the series.
Please let me know if you would like to know more about "The Hostile Hospital" or any other book from "A Series of Unfortunate Events."