In the US state of Idaho, the grandparents of two missing children have offered a twenty thousand US dollar reward for any information leading to the discovery of seven year old Joshua Vallow and seventeen year old Tylee Ryan.

Local law enforcement believes the children’s lives are in danger, since the parents of the two children have been linked to mysterious deaths in the past.

And, according to Idaho officials, the mother of the children Lori Vallow has shown an apparent lack of concern for them.

Vallow is currently in custody, charged in relation to the disappearance of her children who were last seen in September 2019.

The children’s grandparents Kay and Larry Woodcock told East Idaho news they are holding out hope that the children are alive.

“These are two extremely intelligent young children and we want them back in our family,” Mr Woodcock said.

While they are optimistic that their grandchildren are alive, they are worried for the children’s safety as there has been no communication from them for several months.

“He would call us all the time on the cell phone, on Facetime and first thing he would say is Pawpaw, Mawmaw, then he’d take the phone or the Ipad and he’d start walking so we knew every ceiling in every home that they were in,” Mr Woodcock said.

Lori and her new husband Chad Daybell were announced as persons of interest in the case, which attracted worldwide attention with revelations of Vallow’s ‘cult’-like beliefs.

Officials are re-investigating the deaths of Vallow’s previous husband and also her brother, and Daybell’s previous wife.

Divorce documents from Vallow’s previous marriage allege she believed that  “she was a god assigned to carry out the work of the 144,000 at Christ’s second coming in July 2020.”

She was linked to a group called Preparing the People which is a Mormon organization preparing for the second coming of Christ.

Good news came for the Woodcocks when Vallow was found and arrested in Hawaii on Feb 20.

“All I want before I go is to just see those children and especially – and I’m not being greedy – especially my boy JJ, my little man. I want to hear him beat on the drums. I want to hear him say Pawpaw let’s go ride, or let’s go to checkers and let’s go get a hamburger,” Mr Woodcock said.