The mother of three-year-old Mikaeel Kular has appeared in court charged with his murder and attempting to defeat the ends of justice.
Rosdeep Kular appeared at Edinburgh Sheriff Court.
Mikaeel was reported missing from his home on Thursday.
His body was later found around 40km away in Kirkcaldy, Fife.
On Saturday night, Police Scotland said a 33-year-old woman had been arrested and charged in connection with his death.
A major police investigation was launched after Mikaeel was reported missing.
Hundreds of local volunteers joined police and various agencies to search for the boy in north Edinburgh, often in bad weather and low temperatures.
Officers found a body, subsequently identified as that of Mikaeel, in Kirkcaldy shortly before midnight on Friday.
The body was later removed from a wooded area behind a property in Dunvegan Avenue.
Around 500 people turned out on Saturday night for a memorial service at Muirhouse St Andrew's Church, close to the home Mikaeel shared with his twin sister and three other siblings.
Meanwhile, two men have been arrested after allegedly racist comments apparently relating to Mikaeel's disappearance were posted on social media sites.
The two, aged 19 and 26, were released on bail following questioning.
Police Scotland said it liaised with colleagues from Hampshire Constabulary and Derbyshire Constabulary to identify the suspects.