1. He's leaving to rescue Mori, knowing there's a huge possibility he'll get caught/harmed in the process and didn't tell Miria so she won't be implicated in the crime & there will be someone left to take care of Mori when he can't be with Mori anymore
2. He's going to the judge to deliberately get punished/incarcerated after claiming that, yes there was a kidnapping, but it did not involve Miria taking advantage of Shalam's barrier weakening. That it was just Rider on his own wanting to make money off of Mori, which would then increase Miria's chances of winning the judgement and getting back Mori.
3. He's off to see some less than law-abiding acquaintances to help him break Mori out of feral baby jail & go into hiding with him. Possible Rider backstory reveal? (least likely)
4. (??) Fourth unfathomable option from the author's brain that we cannot begin to guess for the reader's maximum suffering
1. He's leaving to rescue Mori, knowing there's a huge possibility he'll get caught/harmed in the process and didn't tell Miria so she won't be implicated in the crime & there will be someone left to take care of Mori when he can't be with Mori anymore
2. He's going to the judge to deliberately get punished/incarcerated after claiming that, yes there was a kidnapping, but it did not involve Miria taking advantage of Shalam's barrier weakening. That it was just Rider on his own wanting to make money off of Mori, which would then increase Miria's chances of winning the judgement and getting back Mori.
3. He's off to see some less than law-abiding acquaintances to help him break Mori out of feral baby jail & go into hiding with him. Possible Rider backstory reveal? (least likely)
4. (??) Fourth unfathomable option from the author's brain that we cannot begin to guess for the reader's maximum suffering