Thomasina lived in Stain'd-by-the-Sea with her husband and twin children, Tatiana and Treacle, where the family owned a rocking chair business called Cozy's. She consdered her and her husband to have a successful marriage, despite the fact the only thing they had in common was a love of horror movies and big-boned fish.
Her husband died choking on a fish bone, though she blamed the "stationary chair" he was seated in at the time. Cozy's fell on hard times after the economic collapse of the town. Though her children insisted that they were hard workers and could run Cozy's themselves, and perhaps make it profitable again, Thomasina refused to listen to them.
In an attempt to ensure that her children remained safe after she eventually dies, Thomasina arranges a marriage between Tatiana and Baron von Pendle, the nephew of the inventor of the swingset. Tatiana was not enthusiastic about the marriage, but neither Thomasina nor the Baron cared much about her opinion on the matter.
However, the Baron came to Thomasina with concerns; he'd been seeing a figure that looked exactly like Tatiana walking Gobi Pier at midnight, and believed she may be an insomniac. As he is an insomniac himself, he did not want to marry another. Thomasina checked in on her daughter every night to ensure she was asleep, but for nine nights the sightings continued. Thomasina became convinced that this figure was a demon, trying to ruin the wedding.
Thomasina hears that Lemony Snicket has been solving mysteries around town, and so she sends him a note on frilly stationary asking him to come help her solve the case. When he arrives and compliments her store, she explains that they're losing business due to lack of customers and a preference for stationary chairs. Tatiana and Treacle suggest selling other items, but Thomasina won't hear of it.
After hearing her story, Snicket agrees to help by going for a walk with Tatiana that night at eleven, and though Thomasina disapproves, she agrees to the plan so long as they stay out of the Baron's sight. She waves goodbye to them as they leave, and tells them that she'll be up all night worrying, and that she's going to bed.
|Thomasina Cozy||Unnamed †|
|Tatiana Cozy||Treacle Cozy|
|A Series of Unfortunate Events (Books)|
|1. The Bad Beginning (1999):||Absent||7. The Vile Village (2001):||Absent|
|2. The Reptile Room (1999):||Absent||8. The Hostile Hospital (2001):||Absent|
|3. The Wide Window (2000):||Absent||9. The Carnivorous Carnival (2002):||Absent|
|4. The Miserable Mill (2000):||Absent||10. The Slippery Slope (2003):||Absent|
|5. The Austere Academy (2000):||Absent||11. The Grim Grotto (2004):||Absent|
|6. The Ersatz Elevator (2001):||Absent||12. The Penultimate Peril (2005):||Absent|
|13. The End (2006):||Absent|
|All the Wrong Questions|
|Who Could That Be at This Hour? (2012):||Absent||Shouldn't You Be in School? (2014):||Absent|
|When Did You See Her Last? (2013):||Absent||Why Is This Night Different from All Other Nights? (2015):||Absent|
|File Under: 13 Suspicious Incidents (2014):||Debut|
|Other Snicket Books|
|Lemony Snicket: The Unauthorized Autobiography (2002):||Absent|
|The Dismal Dinner (2004):||Absent|
|The Beatrice Letters (2006):||Absent|
|The Hero of the Story (2017):||Absent|