The heartbreaking mystery surrounding the disappearance of two young Nova Scotia siblings – six-year-old Lilly Sullivan and her four-year-old brother Jack Sullivan – has taken another somber turn with revelations of an additional round of polygraph tests conducted by the RCMP in February 2026, as the children remain missing nearly a year after they vanished from their rural home in Lansdowne Station.

The case, which has gripped Canada since the pair were reported missing on the morning of May 2, 2025, continues to haunt the tight-knit community in northeastern Nova Scotia. What began as a frantic search for two small children last seen playing near their home has evolved into one of the province’s most perplexing and emotionally draining investigations, with police turning to lie-detector tests – including a fresh batch last month – in a bid to uncover any hidden truths amid a wall of silence and unanswered questions.

Lilly, with her bright smile and long hair often tied back, and little Jack, described by family as a playful toddler full of energy, were last seen on May 1, 2025, in public with family members. By the next morning, they were gone. Their mother, Malehya Brooks-Murray, and stepfather, Daniel Martell, reported them missing early that Friday from their modest home in the sparsely populated Lansdowne Station area – a remote stretch of rural Nova Scotia about 140 kilometers northeast of Halifax, where dense woods, winding roads, and quiet farms define daily life.

The initial response was massive: hundreds of volunteers from the Nova Scotia Ground Search and Rescue Association joined RCMP officers, helicopters buzzed overhead, dogs combed the underbrush, and divers scoured nearby waterways. Flyers with the children’s photos – Lilly in a pink top, Jack clutching a toy – blanketed the region. Tips flooded in, but leads dried up quickly. No signs of abduction, no ransom demands, no eyewitness accounts of strangers lurking. The children simply vanished.

In the days and weeks that followed, attention inevitably turned inward – to the family home and those closest to the kids. Court documents unsealed in the summer of 2025 revealed that polygraph examinations – commonly known as lie-detector tests – became a key tool early on. At least six were administered during the initial phase, with the first two taking place on May 12, 2025, at the Bible Hill RCMP detachment. Both the mother, Malehya Brooks-Murray, and stepfather, Daniel Martell, underwent testing. According to the filings, their responses were deemed truthful – a small but significant detail that provided some relief to supporters who rallied around the family online and in person.

Yet the questions persisted. Where were the children? Had they wandered off into the woods and met with tragedy? Or was something more sinister at play? The RCMP, careful not to speculate publicly, emphasized that the investigation remained open and active. Search efforts scaled back over time, but never fully ended – periodic checks of the property, interviews, and now, renewed polygraphs.

The latest development, reported on March 12, 2026, confirms that an “additional round” of polygraph tests occurred in February. The RCMP would not disclose who was tested this time, the specific questions asked, or the results – standard protocol to protect the integrity of the probe. However, other reports shed light on at least some of the focus: two of the February examinations centered on one of the few pieces of physical evidence discovered during the search – a light pink blanket found hanging in a tree not far from the home.

A family member who located the blanket – identified in reports as a relative who joined the search – underwent polygraph questioning specifically about it. She described being asked four nearly identical questions on February 20: “Did you plant the blanket in the tree? Did you place the blanket in the tree? Did you put the blanket in the tree? Did you leave the blanket in the tree?” She answered “no” each time and was told she passed. Another individual reportedly faced similar scrutiny and also passed.

The blanket – believed to belong to one of the children – became a haunting symbol in the case. Found dangling from branches in an area already searched multiple times, it raised eyebrows: Was it placed there deliberately? By whom? And why? While passing polygraphs on the issue offered reassurance to those tested, it did little to solve the central enigma – the children’s whereabouts.

Daniel Martell, the stepfather, has spoken publicly in the past about the ordeal, sharing details of the family’s anguish and cooperation with police. In earlier interviews, he described the polygraph process as emotional but necessary. Recent speculation online – fueled by true crime forums and social media – has questioned whether he faced renewed testing in February, though no official confirmation exists. The RCMP has remained tight-lipped, stating only that the investigation continues “with all available resources.”

For the children’s biological father, Cody Sullivan, and extended family, the waiting has been excruciating. Early polygraphs – including one for Sullivan in June 2025 – also indicated truthful responses, per court records. One relative’s test was inconclusive due to physiological factors unsuitable for analysis. These details, while providing glimpses into the investigative tactics, underscore the frustration: polygraphs can suggest truthfulness but are not infallible, and they haven’t delivered the breakthrough needed to locate Lilly and Jack.

The case has drawn comparisons to other high-profile missing children investigations in Canada, where initial hope gives way to prolonged agony. Community vigils in nearby Amherst and Truro have featured candles, teddy bears, and photos of the smiling siblings. A GoFundMe and Facebook support pages – “Bring Lilly & Jack Home” – have kept the story alive, raising funds for reward offers and family support. Thousands have shared messages of hope: “Still praying every day,” “Never give up,” “They deserve to come home.”

Experts on child disappearances note the rarity of such cases in rural settings with no clear evidence of foul play or accident. RCMP investigators have called it “extremely rare,” a sentiment echoed in media coverage. Without bodies, witnesses, or forensic breakthroughs, the probe relies heavily on interviews, digital forensics, and tools like polygraphs to pressure for inconsistencies.

As winter turned to spring in 2026, search teams revisited wooded areas, but no new discoveries emerged. The February polygraphs represent the latest effort to shake loose information – perhaps from someone holding back a crucial detail. Police continue to urge anyone with information, no matter how small, to contact them or Crime Stoppers.

For Lilly and Jack’s loved ones, each day without answers is a torment. The pink blanket swaying in the breeze, the empty bedroom toys, the fading hope – all serve as cruel reminders of what’s missing. The family clings to the possibility the children are alive somewhere, perhaps lost or taken, waiting to be found.

Nova Scotia RCMP vow the file remains a priority. More polygraphs may follow, more searches planned. Until Lilly and Jack are located – safe or otherwise – the questions will linger over Lansdowne Station’s quiet roads and dense forests.

The children’s faces remain on posters across the province, a silent plea: Come home. We miss you. We love you.

In a world where children should be safe to play in their yards, this enduring mystery serves as a heartbreaking reminder that sometimes, even in the quietest places, darkness can descend without warning – and answers can prove agonizingly elusive.