I carried out all the crimes with the use of magic.How's that? Do you give up, Battler?Ugh! ...... Ha! This is no good, no good at all!There's absolutely no such thing as magic. The mysteries have all been solved!Whaat?First up, the locked rooms! All of them have doors that have hoops to allow entrance or exit to and from one another. Thus, carrying out crimes is possible!Next, resurrecting the deceased is child's play with the time machine!Furthermore, reproducing the other situations is possible with the Nimble Mantle, the Get-anything-you-want Bag and the Wooden Copter! The 3 tricks mentioned are from DoraemonTherefore, it is impossible that the crimes were carried out with the use of magic!It's Science!