Doomsday-obsessed mom Lori Vallow surprised her latest court hearing this week as she waived extradition — allowing a speedy return to Idaho to face trial over her two children who have been missing for months.

Appearing in court in Hawaii Wednesday in an orange jumpsuit, the 46-year-old mom was only expected to fight to get her bail reduced from $5 million to a comparatively paltry $10,000.

After that bid failed, Vallow surprised the court by agreeing to an expedited return to face charges in Idaho rather than wait for an extradition hearing that had been set for next Monday.

The judge scheduled a status hearing for next Wednesday to make sure she has been picked up.

Kauai police arrested Vallow last week on an Idaho warrant after she failed to meet a deadline to hand over her kids, Joshua “JJ” Vallow, 7, and 17-year-old Tylee Ryan.

The children have not been seen since September and police in Rexburg, Idaho, have said they “strongly believe that Joshua and Tylee’s lives are in danger.”

Vallow, also known as Lori Daybell, has been charged with two felony counts of child abandonment.

Rexburg police questioned Vallow and her husband, Chad Daybell, about the missing children in late November — but when detectives returned the next day, they discovered the couple had left town.

Police also have said the couple has lied about the children’s whereabouts. Vallow is also accused of disobeying a court order that required her to bring her children to Idaho authorities last month.

Vallow reportedly believes she is a “god assigned to carry out the work of the 144,000 at Christ’s second coming in July 2020,” according to divorce documents her late husband Charles Vallow filed before his death.

Daybell has written several apocalyptic novels based loosely on the theology of The Church of Jesus Christ of Latter-day Saints. Both he and Vallow have been involved in Preparing a People, a group that promotes preparing for the biblical end times.

Kauai police did not arrest Daybell and he doesn’t face any charges.

With Post wires