PALATKA, Fla. -- More than seven months after Haleigh Cummings disappeared from her father's mobile home in Satsuma, investigators have learned more information about the night the 5-year-old disappeared.

Putnam County investigators said Haleigh's father, Ronald Cummings, called home from work several times trying to reach his 17-year-old girlfriend, Misty Croslin, who was babysitting Haleigh and her younger brother.

No one answered, according to deputies.

According to deputies, Cummings then called Croslin's family looking for her and asked her brother -- Hank Croslin Jr. -- to go check on her and his kids.

"Ronald calls numerous times, Hank says that he answered that call from Ronald, which we know that was made ... It was Ronald saying, 'Go check on Misty,'" Putnam County Maj. Gary Bowling said. "He said he complied with that request and Misty did not answer the door. The house was dark and quiet."

Putnam County investigators got that information last Thursday night during an interview with Hank Croslin Jr. while he was in custody on a grand-theft charge unrelated to the Haleigh Cummings case.

Bowling said Croslin told them he make a concerted effort to see if anybody was at the Cummings' mobile home that night.

"He tells us that he made a good effort to see if someone was home," Bowling said.

The investigators said Croslin's statement casts more doubt on his sister's story that she was home watching movies that night with the two kids.

"What we need is for Misty to come down here and tell us the truth," Bowling said.

While the Putnam County Sheriff's Office has not released a great deal of information about the case that has generated over 4,000 leads and taken investigators across the country, Bowling said they are releasing this information in hopes of getting Misty Croslin-Cummings to be more forthcoming with investigators.

"We know that it applies pressure where pressure needs to be applied, and that's on Misty," Bowling said. "She needs to tell her attorney that, 'You know we need to go down to the sheriff's office and really lay out in clear terms what I was going from 8 p.m. to 3 a.m."

Five weeks into the search for Haleigh, Misty Croslin married Ronald Cummings, who has publicly never waived in his support of her.

Misty Croslin-Cummings did not return a phone call from Channel 4, but her attorney, Robert Field, told Laura Mazzeo he questions the credibility of Misty's brother. They have not been getting along and she currently has a restraining order against him.

Field said if they want to talk to Misty Croslin, they should contact him, not try to pressure her by releasing information to the media.

Bowling said Hank Croslin's interview had nothing to do with the search of a pond south of Palatka that began the next afternoon. That search was generated by an unrelated tip and the timing was purely coincidental.

Authorities ask anyone with any information about Haleigh's disappearance to call the Putnam County Sheriff's Office at 386-329-0800 or the FDLE's Missing Endangered Persons Information Clearinghouse at 888-FL-MISSING. A $35,000 reward remains in place for Haleigh's safe return or a tip that leads to the conviction of whoever was responsible for her disappearance.