ORLANDO, Fla. -- The lawyer for the mother of missing 2-year-old Caylee Anthony will be back in court Monday, trying to get his client freed on bond. Casey Anthony, the girl's 22-year-old mother, has been in jail since her arrest on child neglect charges last week.

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VIDEO REPORT: Grandmother Says She May Be Able To Piece Together Clues

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The little girl's family is trying to remain optimistic. Casey's attorney is hoping for a new hearing and a new judge, so that Casey could possibly be granted bond. The judge she had at her first appearance questioned her harshly and offered her no bond.

At a vigil Sunday night, Caylee's grandmother said her own daughter's thoughts may yet be the key to the case.

"If I can get some of those other pieces, I think this picture is going to come together very quicly," said Cynthia Anthony, Caylee Anthony's grandmother.

The family of little Caylee Anthony is still pleading for tips from friends of the young girl's mother and from the public at large. Sunday night, they gathered for a prayer vigil outside the grandparent's home where Caylee has lived her entire life.

More than 100 people who showed up to support the Anthony family also prayed for Caylee's mother. Casey Anthony remained in jail Monday morning, because investigators say she lied to them about the little girl's disappearance.

Cynthia Anthony says Casey has always been a writer and recently the family has been going through her journals, hunting for clues. She said a certain amount of jealousy over Caylee crept into her relationship with her own daughter.

The family is hoping to see Casey at the Orange County jail when she is allowed visitors for the first time on Wednesday or possibly even sooner if Casey's attorney is able to convince a judge she deserves bond.

Saturday, we learned new information about a phone call. The grandparents of the missing 2-year-old say the child's mother got a mysterious phone call a day before she was arrested and charged with felony child neglect. That call gives them hope that Caylee Anthony is still alive.

"Casey got a phone call, 'Hi, Mommy?' Casey said, 'Put an adult on the phone Caylee.' The phone went dead," said Cynthia Anthony.

Cynthia is Casey's mother and Caylee's grandmother. Investigators have been on an all-out search for Caylee Anthony since she was reported missing last week. They have arrested her mother, Casey, on child neglect charges and say she has told them a string of lies about where her child may be.

The Anthonys say they're sure Casey is telling the truth about that phone call despite lies to law enforcement.

"We don't know why she's been misleading them (law enforcement)," said Cynthia.

Cynthia believes if someone took Caylee, that person might have threatened Casey, the toddler or her family. She also feels Casey knows that person.

"And she feels compelled to put the blame on herself than some other person," said Cynthia. "That's the type of person Casey is."

Investigators did not release many new details about the case, Saturday, other than to say that weeks after Casey Anthony last saw her daughter, Casey got a tattoo that says "Bella Vida" in honor of her daughter.

Investigators did not release further details about a car they had been searching, Friday.

A strong smell led investigators to focus on an Orange County parking lot and a car that was found there.

The car was parked in a lot near State Road 50 and Goldenrod Road (see map) for a few days earlier this week. A business owner had it towed and it turned out to be Caylee's grandparents' car, one the toddler's mother drives.

The car or the parking lot might hold the only clues right now. Channel 9 has learned investigators came back to square one again Friday afternoon and searched for possible evidence at the place where Caylee Marie Anthony's mother had, for some reason, abandoned her car earlier this week.

While they didn't find anything at the parking lot, sources told Eyewitness News they might be finding clues in the white, 1998 Pontiac GT that Caylee's mother Casey left in the east Orange County parking lot. Eyewitness News has learned there was a stench in the car, which could indicate evidence of a body, but sources said investigators don't have any more than that to go on and they haven't figured out what the stench was from.

"We get information that comes in that sometimes suggests one thing, sometimes suggests another," Sgt. John Allen said Friday.

Friday morning, investigators brought cadaver dogs in to comb through Caylee's grandparents' backyard (see map) looking for anything that might explain what happened to her, all because a neighbor told them Caylee's mother had borrowed his shovel about a month or so ago, around the time she told investigators Caylee had disappeared.

Caylee's grandmother, Cynthia Anthony, said the shovel was for yard work and said Casey didn't have keys to the family tool shed.

"We have bamboo growing in our backyard. The only way to get rid of it is to use a shovel," Cynthia told Eyewitness News.

One of the dogs seemed to pick up on something, so police thoroughly searched the yard, under a playhouse, in the bushes and found nothing Friday.

"I got sick initially, because you get that thought, what if, but we knew deep inside there can't be anything wrong here," said grandfather George Anthony.

"If I have to go out myself, door to door, and look for this child, until the day I die, I will walk every inch of this earth and open every door and knock on every door everyday and I will look in every nook and cranny," Cynthia said.

The pair says they have faith in their daughter and are paying for her attorney.

Investigators, too, remained optimistic Friday.

"We're going to continue working in hopes that we find her alive, we find her alive and safe and sound," Allen said.

Caylee's mother apparently abandoned her car in the parking lot earlier in the week. When Caylee's grandparents found out two or three days later, it was then they also found out Caylee was missing and asked the sheriff's office to investigate. It is unclear, though, why Casey left her car sitting in the parking lot.

Casey Anthony's lawyer has said his client is cooperating with investigators, although investigators say that's not necessarily true. Attorney Jose Baez said Anthony has even volunteered to help investigators develop a composite sketch of the babysitter, with whom she insists she left her daughter with on June 9, the last time Casey saw Caylee. Detectives say the child's father died in a car accident.

Anthony is being held in the Orange County jail in protective custody, which means she doesn't have contact with other inmates. She's being held on a charge of child neglect, a third degree felony. She's also charged with making false official statements, which are misdemeanors. Prosecutors have 33 days to file formal charges.

Friends say Casey Anthony frequented nightclubs and most recently did events planning for a local entertainment company. She was a member of the Travel and Tourism Club when she attended Colonial High School.